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My 89 GL10 wagon failed smog!
Posted 31 March 2005 - 08:42 PM
Posted 31 March 2005 - 10:46 PM
oxygen sensor maybe?
Can anybody tell me what I might need to replace to get it to pass. It failed at idle only. I live in California so it has to pass smog.The max for HC(PPM) allowed is 120. Mine is at 191. the co(%) max is 1.00. Mine is at 3.40. What could be causing this? The inspector checked the timing it was right on according to him. His thought was that it might be the cat going bad. Or possibly a leaky fuel injector. I don't want to pay a mechanic to fix something I can fix. Just not sure what the problem is. I have a newer exhaust from my 87 GL10 wagon that I could use to replace the system on my wagon now. That is probably where I will start if there are no other suggestion but I would appreciate any input on this. Thanks.
Posted 31 March 2005 - 11:06 PM
Posted 29 April 2005 - 08:04 PM
Posted 29 April 2005 - 09:10 PM
Posted 29 April 2005 - 09:14 PM
Check wires, plugs, cap and rotor - all should be OEM (NGK for plugs) - failing at high rpm makes me think it is something along those lines, or dirty injectors (fuel additive cleans system)
the BIGGEST concern is that it needs to be at normal temp at the time of the inspection, I have "busted" shops for inspecting my car below normal temp and failing it (shop was less than a mile from my house, guy inspected it while I was on the phone to him, failed it, I went over immediately, and temp gague did not lift at all - after being off for less than five minutes) - doing so is a direct violation of the proceedure they are legally obligated to follow, and it will cause ANY car to fail inspection - unfortunately I did not have any friends at the DMV emissions office until recently......
Good Luck - getting these cars to pass emissions can be a real pain in the !@# sometimes
Posted 29 April 2005 - 11:03 PM
Posted 29 April 2005 - 11:11 PM
I assume you replaced the O2 sensor? - reguardless of what the tech guy said, it won't throw a trouble code unless it is WAYY off - cheap possibility
here's a link to part of the 1989 FSM (look under EA82) - it does not have all the info on the turbo system, but it does have some of it:
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