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Maintenance & Repair Check Engine light
1656 messages, Last post on Nov 10, 2009 at 6:37 PM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
88 Integra with 130,000 mi. After running at freeway speed for about three minutes, check engine light comes on (doesn't when driving on city streets). If engine is shut off momentarily, light does not come back on for awhile. Doesn't appear to be any performance effects. Mechanic checked computer--said there was no code. Anyone have an idea?
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| I have the opposite problem with my 91 Tercel w/ 60k miles: Comes on during city driving, but then turns off when on the freeway. Sometimes it stays on for a few days, sometimes just a few minutes. And the times it comes on is just as eradic. My Tercel also doesn't seem to have any performance effects... | |
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I'm having the same problem with my 96 Acura Integra. The check engine light keeps coming on and going off by itself (about 5 times in the last 250 miles). I've only bought it 1 week ago, and I'm a little worried about it. Anybody ran any OBDII diagnostics on a car with a flaky check engine light?
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these things can drive you crazy sometimes and there isn't always an answer readily available. You might all check your catalytic converters, especially on the cars with higher mileages, if no codes come up.
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The most "common cause" of the "check engine" light is the Exhaust Gas Recirculation (E.G.R.) valve on most Asian vehicles. Although it is sometimes quite disconcerting to have the light come on it is usually not harmful to the engine or it's performance. The E.G.R. valve is exposed to high temperatures and it can get "carbon fouled" easily and therefore send a signal to the Electronic Control Module (E.C.M.) that there may be a problem (not necessarily a significant one). |
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| Yes, that's a good suggestion...on some cars, if the EGR valve and the tube that routes it are clogged, that can get pricey, they're hard to clean out. But you should have gotten a code on that, I would think. Definitely worth checking! | |
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This is in reference to akt's Tercel and kuro's Integra - Another cause of the check engine light coming on in a higher-mileage car is a faulty oxygen sensor. Should still store a code, though. Shouldn't anything that causes the light to go on store a code? |
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| You'd think so, but he says no, so we're trying to diagnose based on that information. | |
On most fords the check engine light comes on for no other reason but to get you to take the car in for a tune up and check up. (at about 60,000 miles). There is a reset the repair person resets to clear the light. On a van is is on the passenger side , in front of the door, hid behind the side panel. Hold in reset, turn on key switch, then release the reset switch.
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