 Help: Check engine light on, code 71 |
 Dec 19, 2012 - 7:50 PM
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Enthusiast Joined Dec 19, '12 From California Currently Offline Reputation: 0 (0%)  |
Hi, I have a '94 Celica ST automatic, with about 170,000 miles. The check engine light is on and it's code 71. I already cleaned out the EGR, but the check engine light came back on after I reset it. So I got another EGR used from Pick a Part, and the light is back on again. Could it just be it needs a new sensor?
Also, smoke comes out of the tail pipe when I give it gas, and it smells really bad. Is it unrelated to the check engine light being on? I've considered having the engine rebuilt, but I want to make sure before I spend that much money. It has good compression. I bought valve seals but the person who was going to do them said it would be best to just rebuild the engine. And the person I bought the car from said he recently rebuilt the engine. So I just don't know.. I'd appreciate any ideas on these problems. Thank you! |
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Jan 12, 2013 - 11:31 PM
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 Enthusiast  Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
apply vac to the port on the egr valve(either with a lone vac hose to a port on the intake mani that has vac, or suck on it) at idle, if the engine stalls, the egr port and valve are functioning. the solenoid hardly goes bad. im betting if it passes the valve test its the modulator (20$ at autozone IIRC)
smoke on accel is usually piston rings allowing oil to burn off. if it burns oil and has decent mpgs id bet its rings. valve seals only show a puff of smoke at startup and thats it.. -------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
Posts in this topic
Jules88 Help: Check engine light on, code 71 Dec 19, 2012 - 7:50 PM
Box There're 4 components within the EGR system, a... Dec 19, 2012 - 8:56 PM Box Also on the other issue. Is the smoke blue or bla... Dec 19, 2012 - 9:04 PM
Jules88 Thanks for the advice. The smoke is gray, and ther... Dec 31, 2012 - 4:29 PM Box You can give it a shot. Personally I wouldn't... Dec 31, 2012 - 7:06 PM Jules88 Alright I'm going to try that tomorrow, thanks... Jan 12, 2013 - 10:34 PM BonzaiCelica Ok so since this is the most recent check engine c... Jul 12, 2013 - 4:51 PM richee3 There should be a TC pin in your diagnostic box. T... Jul 12, 2013 - 5:05 PM BonzaiCelica Thx but i failed before i even posted here. I conn... Jul 14, 2013 - 2:15 AM |
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