Hi Guys,
i´am Max, 30 years old and new to the forum here.
In this case it´s not about my own car, but from a close friend.
Car is a 1998 Viper GTS with a 2.4 Roe Supercharger.
Tuned via HP Tuners.
There is actually a longer story to the car, it had an engine failure two year´s ago due to a faulty ECU.
So the Car has a new ECU now. Bought from the Viper Store in Florida.
Good Service from those guys by the way!
Engine was rebuilt with OEM Parts ( Forged Pistons ) an is mechanically 100% fine.
Made around 650HP and 800 ft/lbs at the tires a few weeks ago on the chassis dyno. ( with WM running 10PSi, safe tune for pump fuel ).
Now about the problem:
The car currently has a Map Sensor fault. P1296 Map sensor supply voltage to low.
By backprobing the Sensor everything seems fine, good supply Voltage of around 5.1Volts while running and startup. Good ground and plausible signal Voltage.
We´ve also changed the map sensor already. No change...
The sensor used is the same 2 bar map sensor used in the SRT-4´s. The new sensor is a Standard Products AS220.
OEM Mopar is out of production... but both show the same fault anyway.
That´s the same sensor type that came with the Roe Kit when it was installed about 7 years ago.
Whats weird about the fault is, when you clear the code an start the car it´s fine. Also while driving, no codes.
As soon as you shut the car down and start it back up it runs like crap an throws the code.
If anybody has a pinout of the ECU i would appreciate it a lot, maybe there is a bad connection at the ECU?
Apart from that, anybody ever had that issue?
Thanks a lot already!
Best Regards
Max
i´am Max, 30 years old and new to the forum here.
In this case it´s not about my own car, but from a close friend.
Car is a 1998 Viper GTS with a 2.4 Roe Supercharger.
Tuned via HP Tuners.
There is actually a longer story to the car, it had an engine failure two year´s ago due to a faulty ECU.
So the Car has a new ECU now. Bought from the Viper Store in Florida.
Good Service from those guys by the way!
Engine was rebuilt with OEM Parts ( Forged Pistons ) an is mechanically 100% fine.
Made around 650HP and 800 ft/lbs at the tires a few weeks ago on the chassis dyno. ( with WM running 10PSi, safe tune for pump fuel ).
Now about the problem:
The car currently has a Map Sensor fault. P1296 Map sensor supply voltage to low.
By backprobing the Sensor everything seems fine, good supply Voltage of around 5.1Volts while running and startup. Good ground and plausible signal Voltage.
We´ve also changed the map sensor already. No change...
The sensor used is the same 2 bar map sensor used in the SRT-4´s. The new sensor is a Standard Products AS220.
OEM Mopar is out of production... but both show the same fault anyway.
That´s the same sensor type that came with the Roe Kit when it was installed about 7 years ago.
Whats weird about the fault is, when you clear the code an start the car it´s fine. Also while driving, no codes.
As soon as you shut the car down and start it back up it runs like crap an throws the code.
If anybody has a pinout of the ECU i would appreciate it a lot, maybe there is a bad connection at the ECU?
Apart from that, anybody ever had that issue?
Thanks a lot already!
Best Regards
Max
