CODE 121 TPS after top end rebuild cant figure it out!!!!!
11-28-2012, 09:59 PM
#1
CODE 121 TPS after top end rebuild cant figure it out!!!!! ok I had to replace my cam, and I installed a fast 102 and did some head work while i had everything out.
once I got everythign back together I started kicking a P0121 code which is Throttle Position Sensor/Switch A Circuit Range/Performance Problem. It seems like it may be intermittent but its hard to tell.
I checked grounds and the pass head had 3 grounds and the driver head had 0 I assume 3 grounds total is all is suppose to be behind the heads. I did not remove any other grounds.
the ECM was replaced so that rules that out, TPS was replaced twice and one was pulled off a trouble free car.
the harness seems to plug in snugly in the new TPS, any ideas on this one?
once I got everythign back together I started kicking a P0121 code which is Throttle Position Sensor/Switch A Circuit Range/Performance Problem. It seems like it may be intermittent but its hard to tell.
I checked grounds and the pass head had 3 grounds and the driver head had 0 I assume 3 grounds total is all is suppose to be behind the heads. I did not remove any other grounds.
the ECM was replaced so that rules that out, TPS was replaced twice and one was pulled off a trouble free car.
the harness seems to plug in snugly in the new TPS, any ideas on this one?
