P0122 CEL Code
10-31-2011, 07:03 PM
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P0122 CEL Code
Hey Metro,
Sorry to post about this issue again, but its still unresolved and I could really use all the help I can get.
The problem is:
I swapped my car (2005 Drive by Cable) from turbocharged back to NA and now my car is throwing a P0122 Code (Throttle Position Sensor/Switch A Circuit Low Input). I swapped everything back in stages and at one point, I don't know how, but I had the car running on a NA setup (intake and exhaust) with the 550cc injectors and 255 walbro fuel pump. The car seeemed to run fine at that point. I know it was dumb, but I had the car running like that for a few days. Anyway, the problem arised the minute I changed my 550CC injectors to OEM injectors. At this point, the car currently has a K&N Short Ram Intake, Tanabe Aftermarket Exhaust, and 255 Walbro Fuel Pump.
All current symptoms relate to a TPS related problem:
Rough/Low Idle
Surging
Stalling
No/Little Acceleration
So far I have done the following to remedy the situation:
Tested 2 sets of OEM Injectors
Replaced TPS with new TPS (Currently Reads: .35@Idle and 4.5@WOT)
Cleaned all wire connections
Checked throttle cable tension
Checked all vacuums lines
I have no clue what the problem is. I feel like I have a bad ECU or throttle body.
I haven't driven my S for weeks now and I'm dying of stress. I also need to use the S to commute on somedays of the week so I'm caught in a really tough situation. Please, if anyone has any insight or help it would be much appreciated. Thanks in advance.
Sorry to post about this issue again, but its still unresolved and I could really use all the help I can get.
The problem is:
I swapped my car (2005 Drive by Cable) from turbocharged back to NA and now my car is throwing a P0122 Code (Throttle Position Sensor/Switch A Circuit Low Input). I swapped everything back in stages and at one point, I don't know how, but I had the car running on a NA setup (intake and exhaust) with the 550cc injectors and 255 walbro fuel pump. The car seeemed to run fine at that point. I know it was dumb, but I had the car running like that for a few days. Anyway, the problem arised the minute I changed my 550CC injectors to OEM injectors. At this point, the car currently has a K&N Short Ram Intake, Tanabe Aftermarket Exhaust, and 255 Walbro Fuel Pump.
All current symptoms relate to a TPS related problem:
Rough/Low Idle
Surging
Stalling
No/Little Acceleration
So far I have done the following to remedy the situation:
Tested 2 sets of OEM Injectors
Replaced TPS with new TPS (Currently Reads: .35@Idle and 4.5@WOT)
Cleaned all wire connections
Checked throttle cable tension
Checked all vacuums lines
I have no clue what the problem is. I feel like I have a bad ECU or throttle body.
I haven't driven my S for weeks now and I'm dying of stress. I also need to use the S to commute on somedays of the week so I'm caught in a really tough situation. Please, if anyone has any insight or help it would be much appreciated. Thanks in advance.
11-03-2011, 04:48 PM
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It was a tough battle, but its finally over!!! 
We narrowed it down and it turned out to be an o ring to the MAP sensor!
Thanks Billman, you are the best!
3 weeks of S2K withdrawal. I'M DRIVING THE S NON STOP MUAHAHAHAHA
We narrowed it down and it turned out to be an o ring to the MAP sensor!
Thanks Billman, you are the best!
3 weeks of S2K withdrawal. I'M DRIVING THE S NON STOP MUAHAHAHAHA
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