2000 Grand Cherokee Jeep Evap code

I have a 2000 Grand Cherokee Jeep 2WD. I had my “check engine light” looked at by a car repair shop. They told me that I had an Evap code of P0043. The mechanic said that the price would be around $300 to replace canisters, etc. Is this a good price? and what are the problems that this could cause with my car if it is not taken care of?

Response:
$300 for the O2 Sensor is a bit steep.. but as far as what happens if you do nothing, the good news is, nothing. The light will just be on. This o2 sensor just moniters the function of the Catalytic converter and has no bearing on fuel mileage or driveability of the vehicle and is only on there because our government says it has to be. You can drive it forever with out this particular part being replaced.

P0043 HO2S Heater Control Circuit Low Bank 1 Sensor 3
Symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

Possible causes

- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit poor electrical connection
- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit fuse
- Faulty Engine Control Module (ECM)

Tech notes

The code means that there is a problem with the READ MORE

My 2002 Ford Expedition Air Bag Light is on and Flashing Code 42

I have a 2002 Ford Expedition with the Air Bag Light on flashing 4 times then 2 times over and over. I tried turning off my car and restarting it but the light keeps coming back on and keeps flashing. I keep thinking my airbag is going to go off and it scares me. What should I do?

Response:
First off, anytime the airbag light is on the airbag system is turned off and will not deploy the airbag even if you get in a crash. You will need to have a mechanic scan the system and diagnose the problem and have it fixed. The most common issue on this particular vehicle is the the drivers side front airbag sensor becoming corroded. Cleaning the connections and or replacing the sensor is usually needed.

1997 Honda Accord Error Codes

1997 Honda Accord 4-cyl VTEC engine light is on. Autozone diagnostic tester displayed these possible errors/causes:
P0401 - EGR insufficient flow, possible EGR Valve, blocked EGR passages in engine;
P0171 - (1) Fuel system too lean bank 1 (Cly #1), large vacuum leak [I found a disconnected hose between valve cover (Cyl#1) and air intake], (2) Fuel system concern, (3) Ignition system concern, (4) MAF sensor faulty, (5) HO2S/AF ratio sensor fault.

P0453 - (1) Sensor circuit high voltage, (2) Open or short circuit condtion, (3) Poor electrical condition, (4) Faulty FTP sensor.

I don’t know where these sensors are located and whether I should change them out if other possible causes might produce the same errors. I found a hose disconnected between the valve cover at #1 Cyl and the air intake.

Can someone shed some light on what might be wrong and how I should proceed?

I looked for vacuum leaks and found a hose disconnected at the #1 Cyl valve cover. The other end was connected to the air intake cover. If I knew where the sensors in question are, I might be able to check the wiring and do some continuity and voltage checks.

2006 Chevy 3500 High RPM Engine Code P0507

Customers Vehicle: 2006 Chevy G3500 Express (Box Truck)
Engine Size: 6.0L
Complaint: High Engine RPM and Check Engine Light On
Previous Work: New Map Sensor, TPS and Both Upstream O2 Sensors
Problem: Engine is idling at 3,300 rpm and will not idle down

Shop Work Performed:
1) Computer Diagnostics and Scan for Codes
    Code P0507 - Idle Air Control System RPM Higher Than Expected

Possible causes:
A vacuum leak : Leaking air intake after the throttle body, EGR valve leaking vacuum, A faulty positive crankcase ventilation (PCV) valve

Damaged/failed/dirty throttle body

Failed EVAP system

Failed IAC (idle air controller) or faulty IAC circuit
 
We used Brake Wash (flammable) to spray around potential vacuum leak areas and came up empty.  We hooked up a smoke machine to confirm there were no vacuum leaks and test was positive for no vacuum leaks.
 
We removed the throttle body and inspected and found an extremely clean throttle body. While it was of we cycled the key and watched the IAC valve to see if it was stuck. It looked like it wasn't moving as it should... but did move some. With our Scan tool attached, we could see the IAC circuit was not functioning as it should.
 
THE PROBLEM FOUND AND FIXED
 
We then Isolated the IAC wiring from the IAC valve and the pcm and checked continuity and found two wires had none going and if we wiggled the harness, sometimes it would. We found the two wires had broken inside less than an inch form the plug in at the IAC valve, We repaired the wiring by soldering them and tested.  FIXED!!!  Runs great and customer is happy....
 

When cold, starts easily and immediately dies

1988 T'Bird, 3.8L. When cold, starts easily and immediately dies. Repeat 4 or 5 times, stays running but very rough idle. Wild (1-2000 RPM) fluctuations. Put it in gear, stalls. Repeat until finally under way. engine missing dramatically accompanied by wild fluctuations in RPMs. Top speed of maybe 50-55 MPH. Stop at red light, low swing of RPM fluctuation- dies. Starts right up, shift into neutral, feather the gas pedal to keep it running, light turns green drop into gear and sputter away. Problem came on rather suddenly. So far I have replaced dist cap and rotor and added injector cleaner to gas to no avail. Plugs and wires are suspect but it ran sweet right up 'til now.

Response:
The first step is to extract any check engine light codes. This can be done free and here is how to do it: Ford Trouble Codes

Once you have the codes, it may guide you to your issue. There are many things that can make this problem happen. A failing MAF Sensor, Vacuum leak, If you notice smoke.. an injector could be stuck open and giving the o2sensors false readings... the good news is that it restarts..... 

1991 corsica throttle position sensor

I was told this sensor is bad. Would it make the car stall and not start? But start 10 min. later? Cad doesn't want to speed up very well at all. Any ideas?


Response:
Could be. Any Codes? It could also be any number of other things or a combonation of things including a plugged Cat Converter. Without Codes your guessing. Heres how to get the codes: http://www.freeautomechanic.com/diagnostictroblecodes5.html
 

dtc code p0171 vehicle idles very rough - IDLE FAST AFTER IT WARMS UP CODE PO171

Code PO171 : System too lean (bank 1)


Description : The adaptive fuel Strategy continuously monitors fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit.

You may have a vacuum leak, stuck IAC Valve or dirty MAF. You may find that if you remove the internal Sensor from the MAF Case that some debree has collected on the thin wire. If you find debree, use a Q-Tip to clean it. DO NOT USE CHEMICALS TO CLEAN IT. If no debree is found, try a Known Good MAF Sensor. Still no fix, move on to testing for a vacuum leak. ( listen for a whistle noise or spray some starting fluid around the intake area while the engine is running). The IAC Valve (Idle air control) may be stuck , remove it and clean the carbon and reinstall if no vacuum leaks are found. Feel free to check out some of the other resources on the website as there may be some helpful information available.

p0720 code a put and output speed sensor on the car

what is the most likely cause for a p0720 code a put and output speed sensor on the car is a 2001 Suzuki SUV with a 4l30e the transmissions 1-2 shift is a late one shifts to second very late all other shifts seem good

Answer:

That is an output speed sensor problem. You need to have your output speed sensor replaced. This will cause the transmission to shift erratically due to it not knowing the correct speed of the vehicle. This is a pretty common problem with several vehicles.

codes: P0003, P0171 & P0174. The engine just started running very rough. Check engine light is on.

I am getting 3 codes: P003, P0171 & P0174. The engine just started running very rough. Check engine light is on. it is a 1999 ford f150 4x4 5.4L 120000 mi. Is this something that would come on suddenly? Truck was running fine and I stopped to get gas and it started running rough on restart after fill up

Answer:

This is a great example of a vacuum leak. More than likely the intake gaskets are shot and need to be replaced as this is the most common issue with the fords and these codes.

It is possible to happen all at once, it is possible that you just got some bad gas then. I would put some octane boost in it and run the gas out then fill it with good gas from another station. If that doesn't clear it up, then you will need to replace the intake gasket or repair the vacuum leak. by spraying brake wash around the top of the engine(not on exhaust) while the engine is running and listen for the engine to change to stumble.

Diagnostic Trouble Code Definitions

ford escort zx2. got codes p0340, p0300,p0302, p0304. replaced plug, wires and cps. what should i do

So far you have done the best first thing.. Start with a fresh tune up. Next look at all the codes and determine what could cause all of them. And the P0340 code is a big indicator. P0340 Camshaft Position Sensor Circuit Malfunction Camshaft Position Sensor Testing

A clogged cat would cause : codes p0340, p0300,p0302, p0304 but not p0340. You can use a back pressure tester in-place of the o2sensor and you need to see less than 1 1/2 psi or it is clogged.

where is the camshaft position sensor located on my gm engine? It's a 1997 3100 engine code P0341

where is the camshaft position sensor located on my gm engine? It's a 1997 3100 engine (6 cylinder) I ran a diagnostics and it came out code P0341 which is the camshaft position sensor. I was thinking of replacing the sensor and see if the problem goes away. The problem is that the engine looses power at higher RPMs. This code fault is the only one in the computer. I do not know the physical location of this sensor to replace it. Can you describe exactly where it is on my engine? Answer: It should be located right below the back of the power steering pump on the lower intake manifold. Camshaft Position Sensor Testing

Hyundai elantra 1.8L 5 speed just suddenly started running very poorly and now will not start

1996 Hyundai elantra 1.8L 5 speed just suddenly started running very poorly and now will not start. The power dropped off to almost nothing. It tries to start but just pops a little like it’s trying. I changed the fuel filter and it gets fuel while cranking. I checked each plug wire and they all have spark. The plugs are almost new. I also checked the timing marks and everything looks right. I have a cheap code reader and get the following codes; 136, 300, 301, 302, 304, and 441. Any ideas what’s causing the misfire and O2 codes? Answer: When was the last time the engine was tuned up? No, not just plugs, but a full tune up! The whole nine yards! READ Entire Article

1998 Mitsubishi Diamante ES with Check Engine Light. Code is P1400

I have a 1998 Mitsubishi Diamante ES with Check Engine Light. Code is P1400, no other codes. Replaced Manifold Pressure Sensor, cleared codes and re-tested. Light came back on. Check vacuum hoses, connections etc. All look good. Car does not pass following self test for emissions: heated o2 sensor, evap test, purge valve test, catalyst test. all these test show incomplete. Other tests pass. What could it be. Other possible tests and what does the code P1400 mean specifically for this car? Will include bonus if you can lead me to answer. Not a dead beat or negative feedback customer.

Answer:

That code is for DPFE circuit low input. The reason why the other monitors have not run, is because they are being blocked until the other repairs are made. So we need to check the passages for EGR to be cleaned and that the system is electrically working. It may be a defective computer as well or need to be re-flashed.

first the check engine light comes on occasionally and then goes off

1999 Jeep Cherokee

I got a new(ish) Jeep over the weekend, previous owner beat the snot out of it and now I'm fixing a lot of small problems, got the list down to a few now, first the check engine light comes on occasionally and then goes off for awhile, I tried the flipping of the key and that didn't show any codes or anything then found the trip odometer trick for the newer jeeps and it didn't give any either so then I took it to the parts store and used their scanner and found p0505 and p0743. I found the p0505 is idle air control? and p0743 has something to do with the torque converter? any help with the next step would be appreciated!!! its a 1999 Jeep Cherokee classic(not grand) 4.0 auto 4wd with 225k on it... it was towed behind a motor home so who knows how many miles are really on it Response: How does the Jeep seem to run other than the codes? For example, does the idle seem normal? Does it do anything unusual, especially when the light is coming on?

2002 Subaru WRX with 125k. The check engine light recently came on

I have a 2002 Subaru WRX with 125k. The check engine light recently came on and my mechanic is saying that one of the four cylinders is failing. Note that this mechanic performed at 60k tune-up. He is suggesting that at a minimum I replace the failed head and that I should probably do both considering the small increase in labor at that point. I'm willing to have the work done, but am concerned that the perhaps this isn't the actual problem?

Answer:

I would not commit to a head(S) as 125k and being a Subaru. Rarely are the heads a problem. I would get the trouble code and CLEAR explanation as to why they want to replace head. There could be so many other min- minor things affecting the cyl. I would def get a second opinion. I am not ruling out a possible headgasket etc.. but.. this is a big job, lots of $ and does warrant a clear/ accurate explanation as to why they are quoting this work

1999 buick regal climate control problem - Air Conditioning Problem DTC B0361,B0441

1999 Buick Regal climate control problem . When I started, A/C unit hot air comes out on one side and cold on the other side and now 1 week later the heater or A/C are not working.

Answer:

2 things that can cause this problem. A low refrigerant level in the A/C system can make the passenger side colder than the drivers side. Until all the refrigerant leaked out and now the A/C isn't working at all. You will need to get the refrigerant level checked in the system to determine this.The other thing is the control head for the A/C unit. GM has a bulletin for this. # 02-01-39-001. I have added the TSB below. To tell if this is the problem, You would need to get the codes checked in the HVAC module. and see if the scan tool can control the temperature doors.

#02-01-39-001: HVAC Temperature Difference Side to Side and/or DTC B0361, B0441 Set (Replace HVAC Controller, Splice into Backlighting Circuit) - (Feb 7, 2002) Subject: HVAC Temperature Difference Side to Side and/or DTC B0361, B0441 Set (Replace HVAC Controller, Splice into Backlighting Circuit) Models: 1997-99 Buick Century, Regal 1998-99 Oldsmobile Intrigue with RPO CJ2 Condition Some customers may comment on a temperature variation between the left and right hand ducts. Typical concerns may include that the right side of the vehicle cools down but the left stays warm or the opposite. This condition is sometimes associated by the customer with a recent service visit for other non-related repairs. The codes, DTC B0361 or B0441, may be present but will not illuminate a telltale lamp. Cause The HVAC controller unit and the TEMP door actuator motors rely on a feedback system that supplies the controller with count values in order to accurately adjust the air temperature. When battery power is interrupted to the HVAC controller, the current actuator position values are lost. When power is restored, the controller will perform a "sweep test" of the doors from full cold to full hot and record the end values for reference. Over time, the TEMP doors may develop some flexing when run to their extremes. This flexing allows the count values to run out of range (beyond 0-255) and results in DTC code B0361 or B0441 to set. Correction A revised HVAC controller has been released with new programming that allows for a wider tolerance in the expected range of the TEMP door. Replace the controller using the procedure below: Important: On the 1997 Buick Century and Regal, additional steps are required. You will have to run a jumper wire to the new HVAC controller. Be sure to follow the additional 1997 model year steps below. 1. Disconnect the negative battery cable. Important: On the Buick Regal, the console must first be removed to access the HVAC controller. For Buick Century and Oldsmobile Intrigue, skip to Step 10. 2. Apply the parking brake and block wheels. 3. Shift the transmission to first gear. 4. Remove the console trim plate and disconnect the electrical harness. 5. Disconnect the cigarette lighter sockets. 6. Remove the console storage box. 7. Remove the console control plate and disconnect electrical harness for traction control and heated seats, if equipped. 8. Remove the console retaining bolts. 9. Remove the console from the vehicle. 10.Remove the HVAC trim panel, if equipped. 11.Remove the HVAC controller retaining bolts. 12.Disconnect the electrical harness. 13.Discard the HVAC controller. Important: At this point, you must refer to the 1997 Buick section below if working on that model and year. The section below includes steps to revise vehicle wiring to enable HVAC controller backlighting. 14.If the vehicle is a 1997 Buick Century or Regal, refer to the section below titled 1997 Buicks (Enabling Backlighting Circuit). 15.Connect the HVAC controller electrical harness and install the controller retaining bolts. 16.Install the control module trim plate, if equipped. Skip to Step 23 for the Buick Century and Oldsmobile Intrigue. Continue below for the Buick Regal. 17.Install the console to the vehicle. 18.Install the console retaining bolts. 19.Install the console control plate and connect the electrical harness for traction control and heated seats, if equipped. 20.Install the console storage box. 21.Connect the cigarette lighter sockets. 22.Install the console trim plate and connect the electrical harness. 23.Shift the transmission to PARK and unblock the wheels. 24.Connect the negative battery cable. Additional Steps for 1997 Buicks (Enabling Backlighting Circuit) 1. Remove the radio retaining bolts. 2. Remove the radio and disconnect the electrical harness. 3. Prepare an 457.2 mm (18 in) long, 18 gauge jumper wire. If multiple colors are available, it would be the most convenient to use grey to continue the backlighting circuit in the same color. 4. Locate and splice one end of the jumper wire to the grey wire occupying pin location F4 at the radio harness. 5. Position the radio back into the I/P and route the jumper wire down to the HVAC controller harness location. 6. Using a new terminal (GM P/N 12146447 Micro-Pak .35-.50), attach and install the other end of the jumper wire into cavity C16 of the HVAC controller harness. The row and column position indications are molded into the body of the HVAC controller at the harness location. 7. Connect the electrical harness to the HVAC controller. 8. Connect the negative battery cable and test the HVAC backlighting by turning on the headlamps and varying the backlighting intensity. 9. Install the radio retaining bolts. 10.Install the I/P upper trim panel. 11.Refer back to Step 15 of the Correction section to complete the procedure. (You will have already connected the electrical harness).

Parts Information Part Number Description 10435588 Controller, HVAC (Buick) 9388139 Controller, HVAC (Oldsmobile) Parts are currently available from GMSPO.

2002 lexus es 300 with a3.0 liter engine that has a trouble code p0031

2002 Lexus ES300

Question: I have 2002 Lexus es 300 with a3.0 liter engine that has a trouble code poo31 I would like to know which sensor this is ? I failed emission test want to know which 02 sensor needs to be changed Answer: this is a fuel metering problem....if the car is not idling right ..you may need to remove the IAC valve[idle air control] and clean the carbon out of the valve and the throttle body..then reinstall...usually this will fix this code......also check for a vacuum leak

I have A 2004 Jeep Grand Cherokee reading code p1281

I have A 2004 Jeep Grand Cherokee reading code p1281 what is it and how do I fix it . I know it is a factory direct code it says fuel air metering p1281

Answer:

This code actually means the engine stays cold too long. This could be caused by extremely cold weather, malfunctioning ECT sensor, or a thermostat that does not let the engine warm up. In most cases, replacing the thermostat will fix this issue.

SYMPTOM P1281-ENGINE IS COLD TOO LONG WHEN MONITORED The ignition key on, engine running, Ambient Temperature greater than 20°F ; and Vacuum is less than 17 inches Hg . SET CONDITION The engine does not warm to 85°C (181°F) while driving for more than 3 minutes and less than 1 hour depending on Engine load and Start up Temperature

2004 G35 inspected yesterday. A code P 21.35 came up on the computer

2004 Infiniti G35

Question: I had a 2004 G35 inspected yesterday. A code P 21.35 came up on the computer check. when I left the garage the car wouldn't respond when I pressed the gas pedal. I shut the engine off and restarted the car and the car accelerated again. This is a used car I am interested in purchasing.Is this a costly problem to repair. Also when the car was on the lift the rubber was corroded on the torque arm mounts and needs replacing. What cost is that repair. I took the car for a test drive it worked fine. I took a second test drive this week to the mechanic. He found code p21.35 was off. When I tried to leave the mechanic the car would only go 5 miles per hour. The mechanic shut off the engine and restarted the engine and the car would now accelerate but the engine light now says it needs service. Answer: Code p2135 is simply the throttle position sensor, call around to your local parts stores and get some quotes on the part. You should be able to install it yourself in a few minutes.

Engine fault code 39. not listed in owners manual.

Question:

1993 Jaguar XJ-S 4.0 ltr 6 cyl fault code 39. not listed in owners manual. What is it and what could it mean?

Answer;

A fault code 39 indicates that there is a problem with the EGR temperature sensor circuit. The ECM monitors the temperature at the intake manifold EGR adapter to determine if exhaust gas is flowing when the EGR valve is commanded open. Check for a malfunctioning EGR valve, carbon deposits clogging the EGR passages, a faulty EGR temperature sensor, or an electrical problem affecting the EGR temperature sensor circuit. The EGR temperature sensor is screwed into the EGR adapter on the right side of the engine. It is part #LHE1610AA and sells for 129.75 at any jaguar dealer parts department.