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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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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1 Answer

Service engine soon light

Disconnecting the battery will not clear the code . Have erase with a scan tool .

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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.

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.
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15. Connect the hose with the white nipple to the vacuum source hose.
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17. Install shield covering AIR pump.
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Hope that helps......... //

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2 Answers

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.

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1 Answer

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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.

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1 Answer

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

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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

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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?

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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.

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2 Answers

Service engine soon light

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