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  #1  
Old 11th April 2007
njdenis_2001 njdenis_2001 is offline
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Default Check engine light..no code reading

My 93 9000 non-turbo has been getting regular cel readings. When I try to get the codes it doesnt do any kind of blinking whatsoever. The symptoms when the cel comes on are: Idle drop to 700rpms..sometimes followed by a surge of 1200rpms.The throttle seems to stutter sometimes..and on some weeks no problems at all. I would rather not go to a dealer due to lack of money and lack of time off from work. Any input is helpful. Thanks ps are there one or two o2 sensors on this model?
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  #2  
Old 11th April 2007
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yaofeng yaofeng is offline
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What step did you take to get the code? Did you turn the ignition key to start short of cranking the starter and wait for the code to flash?
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  #3  
Old 11th April 2007
prionailurus prionailurus is offline
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Assuming the battery hasn't been disconnected for any reason (as then you'd need to do an adaptation run)...renew or clean & re-gap the spark plugs, clean the IAC valve. These are cheap things, other than that, try swapping with a known good DI.
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Old 11th April 2007
njdenis_2001 njdenis_2001 is offline
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I did the just short of cranking the engine to try to get the code. That is the only method I know to use

Last edited by njdenis_2001; 11th April 2007 at 11:20 PM.
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Old 11th April 2007
njdenis_2001 njdenis_2001 is offline
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Is there a way for a non-mechanic to test the di and see if it is good or not? If it makes any difference the car usually starts up quickly and plugs were changed about 300 miles ago

Last edited by njdenis_2001; 11th April 2007 at 11:41 PM.
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Old 12th April 2007
abusot abusot is offline
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I have the same car, it had exactly the same problem.

The connector to the AMM (air mass meter) lives out in the weather and the connection got dirty. Disconnect, spray with contact cleaner or WD40 and reconnect.

If the CEL goes on and stays on, and the engine won't hold an idle on a cold start, and occasionally stumbles when warm, then its probably the AMM itself.

Last edited by abusot; 12th April 2007 at 03:32 PM.
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Old 12th April 2007
njdenis_2001 njdenis_2001 is offline
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great, I will give that a shot. Do you spray where the meshlike part or literally the connector/wire part?

Last edited by njdenis_2001; 12th April 2007 at 04:01 PM.
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  #8  
Old 13th April 2007
abusot abusot is offline
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Quote:
Originally Posted by njdenis_2001
great, I will give that a shot. Do you spray where the meshlike part or literally the connector/wire part?
Just disconnect the connector, its held on by a big clip, separate the parts and you will see a multi pin electrical connector, spray that, connect and disconnect several times to make sure the contacts are clean, put it back together.
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  #9  
Old 14th April 2007
njdenis_2001 njdenis_2001 is offline
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Its been one day-ish ..so far its running pretty well after doing the cleaning..thanks for the input
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