Car not passing emissions test check engine light flashing and car has rough ideling
SOURCE: check engine light/2003 toyota CE
your car engine may have some hidden problem, suggest you take it to dealer workshop to have you car ECU scan and it will resolve the problem once and for all.
SOURCE: ASM 2525 NO ppm TAILPIPE EMISSIONS failure
have you had the the engine codes pulled and reset?
and if so what are your engine codes?
i dont know of any car that will pass emissions test with the engine light on.
we cure your trouble that caused your engine light to come on and you will pass your test.
later
paul
SOURCE: 1999 toyota camry
Take it to autozone and have them to pull a code on it.It sounds like O-2 sincer
SOURCE: 2001 toyota corolla check engine
Mass Air Flow sensor! Just remove your air filter cover. Go to Auto Zone and purchase some solvent. Spray past the air filter and it should correct the problem. If not, replace the Mass air-flow sensor. This is commonly mistaken for an oxygen sensor. Mine did this and I followed these steps and it fixed the light. BTW, the light stayed on for 5 years before I fixed it. Never hurt anything. It's normally something to do with emissions. Dummy lights. :)
SOURCE: '95 Toy 4-Runner Check Engine light and runs rough at idle
Older post...but, just in case you haven't found anything this is a great article.
http://www.off-road.com/toyota/tech/codes/index.html
As a former Audi technician, I can pretty much guarantee the coil packs are your problem.
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