Help! No go pedal, again!

[DWestfall]

Alright my fix didnt work. see this as to what my problem is

:http://www.tdr1.com/forums/showthread.php?t=160188

It happened 4 times in the last 2 days. Going down the road light throttle and then nothing for about two -four seconds motor idling, then everything fine but check engine light is on. No codes. If it was the Accelerator Pedal Position Sensor(APPS) shouldnt I get one of these codes:

P2121 Pedal Position Sensor 1 Performance / Rationality

P2122 Pedal Position Sensor 1 Low

P2123 Pedal Position Sensor 1 High

P2127 Pedal Validation Switch 2 Low

P2128 Pedal Validation Switch 2 High

After 3 cold starts no check engine lights.

Here is my dilema: dealer has APP Sensor in $455. 00. Do I spend that and hope that is it. Can the computer store codes and not show them on the dash? Should I pay dealer to hook up scan tool? Help, I need this fixed. I cant be left stranded if it decides to go completely. But I dont want to throw money down drain.

 

[DWestfall]

Took to dealer this morning pulled all codes for the APP Sensor. Bought it and am gonna replace it. Total cost= $540 They also pulled two codes out of it that I have no listing for PO122 & PO123. Anybody have any ideas?

 

[Turbo Kidd]

I know this is an "Old" post, however, I too would love here the out come of this problem..... I think i may have the same issue.

 

[TCluff]

I HAVE BEEN HAVING THE SAME PROBLEM, I JUST GOT A NEW SENSOR, 401. 00 FROM CUMMINS ROCKY MOUNTAIN, I HAVENT CHANGED IT YET, BUT I WILL IN A FEW DAYS AND REPOST THE OUTCOME...

 

[Turbo Kidd]

Please let me know, because I'm pulling my hair out on this one.



Thanks,

Karl (Turbo Kidd)

 

[rbattelle]

You guys with failing APPS, is it the engine-mounted unit, or the under-battery unit?

Ryan

 

[TCluff]

You guys with failing APPS, is it the engine-mounted unit, or the under-battery unit?



Ryan

MINE IS ON THE ENGINE

 

[TCluff]

Please let me know, because I'm pulling my hair out on this one.



Thanks,

Karl (Turbo Kidd)

i replaced the throttle position sensor and have driven about 200 miles with no more issues and the check engine light is gone...

 

[AllianceDiesel]

tps/apps is gonna fix those codes everytime