Need to cycle the system since the dead battery cleared the computer usually after 125 miles or quick cycle How to Perform Basic Drive Cycle OBD Drive Cycles
I had a similar problem with my Chevy Malibu! NEW BATTERY = FAIL SMOG TEST in California!
I needed to 'freeway drive' as much as possible for four days before the computer would 'reset'... THEN it passed 100%
Anthony
(SAY "Thank You"!)
SOURCE: vehicle failed emissions testing
You need to replace the intake upper plenum gaskets. There is two pieces, a top cover with one big silicone o-ring gasket and a lower half with six smaller silicone o-rings for the individual intake ports. You can buy these as a set, just for this job. Start this job by removing the wiper blades, then release all the screws, (including the ones that support the wiper motor), that hold that big black plastic valence at the back of the engine compartment. Pull that out of the way, you will have to pull the windshield washer hose through it, just disconnect it on the engine side, now you have access to the plenum. It's a pretty easy job now to remove and replace both halves, just a bunch of 8mm screws hold it all together. Take notes or digital pics along the way so you can pop it all back together. My only caution would be; when you have it apart, do not drop anything in the intake port! I always stuff kleenex in these while I'm working in case something slips out of my hands. Also, don't over tighten, it's all plastic. If you don't want to do it yourself, a shop should charge about an hour and a half, plus the codes must be reset and the van driven until all the monitors are ready.
SOURCE: I have a 2001 Saturn. It failed emissions because
Go get your engine fixed at Jiffy...........You know they got a sale right???
SOURCE: Computer readiness will not reset. Will not pass insepection.
check all your fuses, there may also be a code about to set. the timeframe depends on your driving habits. or it could be the garage you are taking it to. ask them for a "drive cycle" printout. this is a form that explains the exact driving conditions for your vehicle to reset the monitors. you could also try taking it to autozone- they can tell you if it is ready or not.
SOURCE: My 1991 4runner failed emissions test with high CO and HC levels.
Not sure, but did you replace the oxygen sensors. Is your catalytic converter still good?
SOURCE: Failed TN emissions testing. 1996 Mazda
the computer needs to be reset by performing a code erase then drive 500 miles
206 views
Usually answered in minutes!
×