Question about Pontiac Bonneville

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Service engine soon light came on. Wire on top of air hose was disconnected by service dept when checking air filter.Light came on after a couple of weeks of driving. Light still on after reconnecting wire.

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  • Anonymous Jul 15, 2008

    I did have some idling problem and I had to change the Throttle sensor and the transmission selonoid. I had the two codes for it so I fixed it and it still is on and the computer dont see any more codes. I know the car may cut of sometime by driving it. I still have not figured that out maybe I need a pinpoint check.

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That worked for me. While the battery cable was off I loosened and cleaned all the ground straps I could find in engine compartment. I found 2 on the driver side shock tower and one on passenger side behind headlights.
Thank you

Posted on Nov 25, 2008

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Hi
im dave
to clear the codes stored remove the negative battery cable for about five minutes. Reistall the cable then turn the car on the light should be out . If it comes back on then there is a fault with one of your sensors and you need to pull the code
let me know

Posted on Jul 15, 2008

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What does error code p0172 and p0174?


P0172 - Fuel Injection System Too Rich Bank 1 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connec
Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem.



P0174 - Fuel Injection System Too Lean Bank 2 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection
Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem. Bottom line possible defective Mass airflow sensor and or O2 sensor in cylinder bank number two.

Feb 21, 2011 | 1998 Ford Expedition

2 Answers

Service engine soon light, and code P0410 Secondary air injection system malfunction.. what are the items to look for? what normally fixes the fault? Thanks


Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump.

Correction
Replace the AIR pump and install a new inlet hose and solenoid tube assembly using the following procedure:
1. Prep vehicle.
2. Raise vehicle on hoist.
3. Remove shield covering AIR pump.
4. Remove hose and vacuum lines from pump and solenoid.
5. Remove AIR pump inlet hose. Do not re-use.
6. Disconnect electrical connectors from pump and solenoid.
7. Remove pump mounting bolts and pump.
8. Transfer isolators from the old pump to the new pump.
9. Install new AIR pump and bolts to vehicle. Tighten the bolts to 17 N.m (12.5 lb ft)
10. Route new hose assembly up between engine and fender. It should come up near the area between the battery and the coolant bottle.
11. Connect new inlet hose to pump inlet.
12. Connect old outlet hose to pump outlet.
13. Connect electrical connector to pump.
14. Connect electrical connector for solenoid to connector on the new hose assembly.
15. Connect the hose with the white nipple to the vacuum source hose.
16. Connect the remaining hose to the shut off valve.
17. Install shield covering AIR pump.
18. Lower vehicle.
19. Remove coolant reservoir nut nearest the battery.
20. Route new hose assembly between the battery and the coolant reservoir with the solenoid on top.
21. Install the solenoid bracket onto the coolant reservoir stud and reinstall the nut back into the vehicle.
22. Use a wire tie to keep the new hose assembly away from the engine. On four cylinder engines, tie to the AIR outlet hose. On six cylinder engines, tie to an available hole in the radiator fan shroud.

Hope that helps......... //

Aug 01, 2008 | GMC Jimmy Cars & Trucks

Tip

Gas Cap Loose Service Engine Soon Light On


This can happen if the gas cap is not properly installed. Make sure you hear several clicks when installing. After 10 or so starts the Service Engine Soon light usually goes away.

A second cause could be a problem with the ground wire that comes from the gas cap sensor and goes to the body. Look up into the wheel well by the filler pipe to check.

A third can be the result of a vacuum leak in the fuel evaporator (EVAP) system. Look for any hoses that go from the air intake to a sensor on the fuel rail (fuel injected cars). Many cars have plastic engine covers that have to be removed to see the fuel rails, sensors and hoses. Most require unscrewing the oil filler to get the cover off. You may not think the hose is leaking but replacing may make your problem go away. A small vacuum leak can also affect the fuel flow and affect the engine operation.

My experience is with the 3.8 engine but this probably applies to lots of engines. On the 3.8 it is the two piece hose that comes from the air intake with one small hose going to the top of the engine and the other going across the front of the engine into a hose that does a 180 degree turn that comes back to a sensor. It costs about $25 and is a dealer item.

There may be other causes but these are three common ones.

on Mar 13, 2010 | Buick LeSabre Cars & Trucks

1 Answer

The 4th time starting my Murano this morning, and all of a sudden the service engine soon light came on and is EXTREMELY slow accelerating. What is up? No problems all morning till now.


Find out why the light is on. I have had a few with the large air inlet hose disconnected between the air filter and the engine.

Nov 16, 2010 | 2005 Nissan Murano

1 Answer

Just had my oil changed and now I have a service engine soon light that will not go out


Most likely the air flow sensor was left of the intake hose going from the air filter housing to the air intake of your motor. Also the light may come on if the sensor was released while the key was turned on but the engine was turned off. If you can take a look under your hood and look for the air filter housing. Once you find it follow the Large air hose that goes into the motor. On this hose there should be a sensor plug in for the air flow sensor wire. If there is nothing plugged into try to locate the wire and plug it in. Once you have it plugged in or if it was plugged in try disconnecting your positive battery cable for about 10 minutes to reset the check engine light. Be careful when disconnecting the battery not to touch any metal with the end of your wrench or ratchet. Hope this works for you..

Apr 19, 2010 | 2000 Buick LeSabre

2 Answers

Service Engine Soon light comes on during a long, high speed drive and code P0101 is set, on 2000 Oldsmobile Intrigue.


P0101 pertains to the Mass Air flow circuit out of range. Check for air leaks at the air inlet hose

Mar 26, 2010 | 2000 Oldsmobile Intrigue

1 Answer

Service engine soon light on causes for that


run scanner for trouble codes, some auto parts store will do this for free , check for loose, broken or disconnected vacuum hose

Oct 04, 2009 | 2003 Suzuki Grand Vitara

2 Answers

Service engine light comes on and lose power


Well for one you already paid them $90.00 so make them fix it right. Second of all it could be many things. What are the codes? If your service engine soon light is on there are codes set. Does the car run fine when cold then as it warms up does it start to run rough and eventually die?

Aug 16, 2009 | 2004 Chevrolet Silverado 2500HD

1 Answer

2001 cheve venture (service engine soon) trouble light on


If ou fixed whatever happened during the oil change, the light will cycle off after about 3 drive cycles.

The check enine light just tells you that you are not meeting emissions right now. Only be concerned if it's flashing. That means you are sending unburned fuel to your catalytic converter whih will overheat and self destruct.

Look for a vacuum hose disconnected and check all the onnections to sensors such as, vehcile speed control sensor, mass air flow sensor, crankshaft position sensor, camshaft poition sensor, throttle position sensor, etc. Good luck.

Feb 27, 2009 | 2001 Chevrolet Venture

2 Answers

Service engine soon light


How do you turn off or reset the "Service Engine Soon " light off without taking my Infinity I35 to dealer. Trying to avoid $200.00 dealer charge!

Jun 24, 2008 | 2001 Oldsmobile Alero

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