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84 Turbo wagon failed emissions


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9 replies to this topic

#1 blownbimer

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Posted 16 February 2006 - 11:21 PM

Well, i thought she was running good....aparently not. I took her over to the emissions place, and she failed the CO part of the test.100 on the co with a limit of 20. Looking at the papers, it failed at high speed on the dyno...so Its over fueling then. Where to start checking? this car has recently had a tune up, but the timing hasnt been set b/c of no marks. 02 sensor? where oh where to start?

Thanks
Erik

#2 ShawnW

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Posted 16 February 2006 - 11:28 PM

Start at the timing.

Theres a marker thats supposed to be on the crank pulley area. It may have been removed or its so covered in oil you dont notice it.

#3 blownbimer

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Posted 16 February 2006 - 11:30 PM

That plastic peice is GONE on this one...motor is super clean on this car, so its not just hiding from me. Prob play around with it...or go to sidewinder and get one...are they a PIA to put on?

#4 Ross

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Posted 16 February 2006 - 11:38 PM

That plastic peice is GONE on this one...motor is super clean on this car, so its not just hiding from me. Prob play around with it...or go to sidewinder and get one...are they a PIA to put on?


its a steel thing, botlts on on top of the water pump, using two of the wp bolts. They're easy to put on with the engine on a bench, maybe harder with it in the car....

#5 blownbimer

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Posted 16 February 2006 - 11:48 PM

Guy I got it from just replaced the water pump...humm...sounds like I need to call him and see if he still has the marker

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Erik

#6 blownbimer

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Posted 17 February 2006 - 12:57 PM

Anyway to adjust the mixture on this one? or is it all electronic?

Thanks
Erik

#7 carfreak85

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Posted 17 February 2006 - 03:53 PM

Its all electronic.

#8 Ross

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Posted 17 February 2006 - 05:20 PM

Anyway to adjust the mixture on this one? or is it all electronic?

Thanks
Erik



Check that it goes into closed loop.... once it (the o2 sensor) warms up the light on the ecs should flash quickly.

#9 Jerry DeMoss

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Posted 17 February 2006 - 05:37 PM

Did you check your muffler bearings?That may be the problem.Maybe blowing oil back in through the knueter valve due to rapid expansion.:lol: Just kidding.Possible that one of the injectors is sticking a little.Not real familiar with the "T" ea81's.Also the idea of the 02 sensor may be a good place to start.Let me know if you would like some extra help.

#10 blownbimer

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Posted 17 February 2006 - 07:04 PM

temp gauge never moves much, maybe the thermostat is stuck open, and not letting the car warm up...it has been like 5 degrees here..heh

Thanks
Erik




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