Questions & Answers for: Geo Prizm fix failed smog test

On my 1993 Geo Prizm i need to know were the intake temperature sensor is because i need to install a performance chip. Thanx On the air inlet pipe from the airbox to the throttle body. But, don't ...

...failed emmisions testing because nO was twice the limit what could it be Hi: You need to find out what is causing the check engine light, to go any further in fixing you car. Most likely you have a ...

test: 1: does the twin cam spin? yes/no, if no, stop and fix that. 2: is spark timing (light) good on #1 or degrees. yes, good, if dead skip to next no, then the timing belt slipped, owner dont do 60k

dose not ideal smooth & lacks power ever do the 60k mile tune up? if not why not. the are parts that fail soon after 60k miles. filters timing belt, its a toyota engine, 3 types, used. spark plugs

...fix. but GEOs wow. if the new lamp fails (1 installed) then see if dash lamp flashes with no corner lamps. moder flasher will flash with small loads, or up to 7 lamps. or more. usually a shorted lamp ...

...test failed HC (PPM) HC (PPM) MAX 64 Ave 28 MEAS 81 failed what is the issue i can be, only 2 things, or both. 1: engine running way too rich. 2: dead cat. (both happens, too) replace the cat, might ...

finding vacuum hose that feeds all cylinders old post day, for underdog cars.... first off we dont know what engine you have. not 1998 1ZZFE. 4AFE or 7AFE. and what country, usa is not canada. so ... ...

...start. sure. check for spark on all cylinders? if sparks good, try test fuel. watch scotty, (simple fixes, no all ways to fail ) http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp ...

i have a 1997 Geo prizm cannot clear check engine light after repairs upper bank 02 sensor,replaced. still check engine light on. Changed thermostat. still check engine light on Have OBD codes read ...

...failed.???? if yes, we fix EGR first. then CAT last. (they work as a team) what gases failed matters and was not stated by you. in a real shop they can sniff front of cat and rear and tell you , bad ...