i am trying to get my 96' jdm wrx through the nct but emissions are high car is running really rich.
i checked my 02 sensor voltage readings there wasnt much fluctuation (staying around .2volts) so i took it that it was dead, i fitted a new aftermarket probe and it is now reading around .9 with fluctuation to .1 volts when revved.
I also fitted a stanard full turbo back exhaust with two cats in it but my emission readings are still super high
anyone any ideas, seems to be overfuelling but i cannot figure out why ?
car has a standard ecu in it. it has a aftermarket air filter and did have a hks downpipe and full decat exhaust but i changed it for the standard exhaust for the test. would the ecu need to be reset to adjust for the changes with the exhaust ?
thanks in advance..
i checked my 02 sensor voltage readings there wasnt much fluctuation (staying around .2volts) so i took it that it was dead, i fitted a new aftermarket probe and it is now reading around .9 with fluctuation to .1 volts when revved.
I also fitted a stanard full turbo back exhaust with two cats in it but my emission readings are still super high
anyone any ideas, seems to be overfuelling but i cannot figure out why ?
car has a standard ecu in it. it has a aftermarket air filter and did have a hks downpipe and full decat exhaust but i changed it for the standard exhaust for the test. would the ecu need to be reset to adjust for the changes with the exhaust ?
thanks in advance..