R7519

I have had a problem with my car for some time now, where she is chugging/hesitating on acceleration, on a scan everything read good except the O2 sensors were at 0 and some weird readings, replaced those and the readings have not changed nor the symptoms. If I let the car sit and cool down, as soon as I start it she runs perfect, but once warmed up starts hesitating? Any ideas

tadpole1969

check your tps and iac first see if there working correctlly

R7519

Replaced both so far

jwog666

what does your iat and cht read, if they go bad they can read -30degrees and that will make them flood out

R7519

Last time we viewed it everything but the O2 looked normal, I didn't see them personally my teacher did

tadpole1969

i would test coils and plugs next , might be going bad,also have the maf tested ,check all fuse's and egr also, that way they will be ruled out as the issue so you can narrow it down better

WhiteFoxGT

Trans harness could have broken wires. It can rub a few spots above and around transmission. Could be the cause of your 0 volt readings.