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Alfa Romeo GT sporadic engine failure - p0641 - p0651 - p2135

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3 years 4 months ago - 3 years 4 months ago #44863 by Madmax1973
Alfa Romeo GT sporadic engine failure - p0641 - p0651 - p2135 was created by Madmax1973
hello everyone
my car is an 2008 Alfa Romeo GT, 1.9 JTD 150hp.
since a few months:
Motor control error message appears without warning; accelerator falls through. After 2 Seconds car runs smooth like before.
obd scan shows error 0641 or 0651 or 2135; sometimes two of them.
yesterday i disconnencted the tps and checked the voltage. heres a video
www.dropbox.com/s/vqejju0zerxjlxs/IMG_1700.m4v?dl=0
www.dropbox.com/s/vqejju0zerxjlxs/IMG_1700.m4v?dl=0
the behavior on the 4th pin is puzzling

already changed:
accelerator
brakelightswitch
crank sensor
battery

nothing worked


am desperate, please help me
Car runs so smooth and fast, but this error sucks more and more

thanks in advance for any helping hand...

edit :
maybe someone has a good wiring scheme, so one can check where the wires go to...
www.dropbox.com/s/vzvu0t6c4q20q2q/IMG_1701.jpg?dl=0

www.dropbox.com/s/f6en6hgeydxm3up/IMG_1695.jpg?dl=0

www.dropbox.com/s/4db02lv26i2qdbo/IMG_1704.jpg?dl=0
Last edit: 3 years 4 months ago by Madmax1973. Reason: add some info

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