if i do about 50+ mph then let off the gas and coast for a few seconds my check engine light comes on. The dealer said that i had a bad egr valve when they checked the code so i replaced it my self but it still comes on everytime i coast . i have a 93 3.4 with 133000 miles. the o2 sensors havent been changed for at least 30,000 miles. what could be the problem
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check engine light comes on when i coast
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yeah , mine did it for 4 years ... wanna know how to solve it... pull the buld out, lol, well thats how i fixed it anyway
i was tired of taking chicks out and having them freak out and tell me to pull over (like any of the stuck up borads knew more than i do about my car :rolleyes: ) , and i never paid attention to it.. so even if it came on when i was driving for another reason i wouldnt have paid attention to it, and if there was something wrong i would know without having a light.. and i scan my car regularly anyway i still throw the codes for the egr solenoids malfunctioning.. but no light-Aaron, AKA ATL2001<br />93 3.4L <br /><a href=\"http://www.ilfba.com\" target=\"_blank\">www.ilfba.com</a>
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my light comes on when iam coasting down hill in 2 gear but in a couple of seconds it shuts off.$Ryan$<br />95 3400 Teal Green FireBird M5<br />Mods: see link <a href=\"http://lowrider.cardomain.com/id/mystical420\" target=\"_blank\">http://lowrider.cardomain.com/id/mystical420</a> <br />1986 Gold Mazda B2000 ROTIP :)<br />*New*74 Moded 350 Chevy Pickup
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same thing was happening to me. I got the code read and it was the EGR valve, i put a new one on and my light keeps coming on like InZane4all's does, i also restarted the PCM but that didn't work either. so its most likley the EGR valve. [img]graemlins/burnout.gif[/img]Red 94 Firebird: KIA<br />Black 2000 WS6 T/A: Parts for Sale
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That used to happen to me too. It is almost definitely an EGR thing, but I am not 100% sure why it does it. I think that it is because of the whole backpressure thing and the fact that is you are coasting in gear and you let off of the gas, there is no load on the engine (as far as acceleration), but the engine is still turning at a high RPM than idle.
I think that mine went away for good when I put my headers on.- Josh<br />If you have any questions or need installation pics/help, e-mail me: Viper98885@aol.com<br /><a href=\"http://Camaroz28.cardomain.com/id/viper98885\" target=\"_blank\">\'93 Camaro Hardtop</a><br /><a href=\"http://Camaroz28.cardomain.com/id/01lincolnls8\" target=\"_blank\">\'01 Lincoln LS8 Sport</a><br />\'00 Yamaha YZF-R6<br /><a href=\"http://www.ftpp.net\" target=\"_blank\">Full Throttle Performance</a>
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LOL, I guess this is an excuse to finally get myself some spanking new headers then? [img]graemlins/naughty.gif[/img] Well, I thought about removing the bulb or whatever it is that triggers that SES light to come on, but you never know when it will come on when there's something actually going wrong with the car. Get's annoying and used to freak my GF out whenever it would come up whenever I would be driving in the freeway. :eek:
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I had the same thing and i changed the egr and it still happened. I sent my computer to ed wright and had him erase the code i think its code #3 and i havent seen the light since.Slammed, Cammed, Stalled, Rollin on ZR1\'s and the sickest exhaust you have ever seen on a camaro Z06 style whoo whoo.<br />I\'m the reaper dude, ask ur people dude. I move
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<blockquote>quote:</font><hr>Originally posted by MustangEater8251:
Yeah I have heard other with this as well... thing is I heard changine the EGR is waht fixed it or cleaning it...
not sure but I never had it on my car...<hr></blockquote>
i put a new one on my car and it still did it for 3 years-Aaron, AKA ATL2001<br />93 3.4L <br /><a href=\"http://www.ilfba.com\" target=\"_blank\">www.ilfba.com</a>
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egr sim is your friend00\' firebird v6 5spd<br />201rwhp ---- 230 rwtq<br />\"Everyday I grow stronger...and further from you.\"<br />WARNING: Do not take any of my comments seriously unless they are technical in nature and then only at your own risk
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