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Check Engine idiot Light

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Old 06-14-02, 12:55 AM
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Check Engine idiot Light

The idiot light "check engine" come on occasionally. The manual says it is an electrical problem.

Everything is running fine. No problems. I stop the car each time and check everything. Find nothing. Start the engine and the light is off. I can go for days before it comes back on.

Anyone have any ideas of what I should be looking for?
Old 06-14-02, 04:33 AM
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Get the error code using the shorting technique on the diagnosis module. then you can have an idea of where the problem is.
Old 06-14-02, 06:03 AM
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huh? excuse the ignorance but what is the shorting technique?
Old 06-14-02, 08:46 AM
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you may just have a sticky sensor that doesn't engage and disengage all the way. Mine had the same problem but I never bothered to fix it. It went away all by itself. I hate when that happens
Old 06-15-02, 03:02 PM
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same **** happens to me...comes on and turns off...funny thing really. Only thing is you get embarassed when someone else is in the car, so you make a bullshit excuse like "oh the o2 sensor is probably bad"
Old 06-15-02, 03:09 PM
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Mine did that this morning the car was not fully warmed up and hesitated at 3K. So I went back around the block and home, turned the car off, and restarted the car. The light went off and no hesitation at 3K went away should I worry about this? Or is this nothing but a funny light?
Old 06-15-02, 03:12 PM
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Check your engine codes... turn your car off and ground the ten... most likely it is the intake air thermosensor(?) I believe that's error code 11. It's a sensor that is under intake manifold that is prone to failing
Old 06-15-02, 04:15 PM
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Arrow

Originally posted by t-rex7
huh? excuse the ignorance but what is the shorting technique?
http://www.scuderiaciriani.com/rx7/engine_codes.html
Old 06-15-02, 05:38 PM
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Re: Check Engine idiot Light

Originally posted by mecman
The idiot light "check engine" come on occasionally. The manual says it is an electrical problem.

Everything is running fine. No problems. I stop the car each time and check everything. Find nothing. Start the engine and the light is off. I can go for days before it comes back on.

Anyone have any ideas of what I should be looking for?
Do you have an aftermarket computer?
Old 06-15-02, 09:58 PM
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No it is the original ECU. I have an M2 Stage 3 that I have not put it yet.
Old 06-16-02, 09:55 PM
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I just fixed mine; i think. I just cleaned the contact on my ground strap that i got from pettit racing. Doesn't seem to do it anymore.
Old 06-17-02, 01:36 AM
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How the heck would cleaning the ground strap solve an ECU code? It'll be back until you replace the sensor. Time to read the code and do the fix bud!
Old 06-17-02, 01:50 AM
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I'm not sure but it hasn't lit up since I did it. I was just cleaning my engine bay and decided to check the contact points on the strap. It's kind of hard to read the ECU code when the light isn't on, isnt it chief? If the light comes back on then I'll definately fix it.
`S
Old 06-17-02, 10:24 AM
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http://www.scuderiaciriani.com/rx7/engine_codes.html

Read this and that's how you get the code. You have to jump wire the diagnostic port in the engine bay with a paper clip or wire to read the code!
Old 06-17-02, 07:07 PM
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cool, i'll try this tonight. Thanks
`s
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