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Old 01-26-2020, 11:02 PM   #1
87chevy.com
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Posts: 1,266
98 style accelerator pedal genV swap ?

1st, it doesn't seem like its going to work on a Gen5 unless the pedal is faulty - not likely since its NEW
2nd, anyone have a hptuner or can log all the pedal parameters?

when i log all the paramters for pedal with a gen 5 pedal on my swap with no pedal issues,

it starts off with:
Accelerator Pedal Position 1 0.0%
Accelerator Pedal Position 2 0.0%
Accelerator Pedal Position average 0.0%
Accelerator Pedal Position Sensor 1 0.94v
Accelerator Pedal Position Sensor 2 0.45v

upon pressing the pedal to the floor slowly, Accelerator pedal position sensor 1, 2, average and position go up all about the exact same %
sensor. 1 voltage and sensor 2 voltage go up , sensor 1 maxes out at around 4.18v, sensor 2 voltage is approx 1/2 the voltage. Entire voltage range of Sensor 2 is about 1/2 the entire time. normal probably.

Verified both 5v ref at connector is 5v.


on the turbo diesel pedal, it starts off different, throttle doesn't even operate
Accelerator Pedal Position 1 0%
Accelerator Pedal Position 2 99%
Accelerator Pedal Position average 0%
Accelerator Pedal Position Sensor 1 - didnt log it, will log again
Accelerator Pedal Position Sensor 2 - - didnt log it, will log again

Position 1% is linear
Position 2% is not, it requires 3/4 pedal to start to decrease.
Voltage Sensor 1 was close to 3.8v

Tried swaping power and ground on position 2, but same non linear increase. and pedal still inop, Position average was also 0% entire testing.
Tried using sensor 3 but didn't read anything. Its a new Dorman pedal. dont want to tamper with it in case it gets warrantied or something.

so, in short, looking for that needle in the hay stack - someone who has a LS swap Gen4 (drive by wire durr) with the Chevy turbo diesel Accel pedal and HPtuners willing to log those 5 parameters

much appreciated,
Clint
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