Power FC Car Starts on stock ECU, not with PFC
03-30-12, 09:39 PM
#1
dorito spinner
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Car Starts on stock ECU, not with PFC
Can anyone throw some ideas my way? Its a brand new PFC. The car will only crank and crank and crank. If I plug the stock ecu back it, it fires right up.
The Green/Black CAS wire has been cut, and it looks like the previous owner ran a new wire to the CAS.
Why would the car start on the stock ecu but not all on the PFC?
The Green/Black CAS wire has been cut, and it looks like the previous owner ran a new wire to the CAS.
Why would the car start on the stock ecu but not all on the PFC?
03-31-12, 07:37 AM
#2
Having a Datalogit would make it easier to diagnose.
From memory: Go to monitor-->1 channel. Select RPM. Press "next" so that you have what looks like a chart format. When you turn the engine over (Key in start position to crank) do you see rpm rising up? There should be a line rising up.
From memory: Go to monitor-->1 channel. Select RPM. Press "next" so that you have what looks like a chart format. When you turn the engine over (Key in start position to crank) do you see rpm rising up? There should be a line rising up.
03-31-12, 12:05 PM
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dorito spinner
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With the stock ecu installed, these are the codes its showing
05 - Knock sensor ??????
28 - Solenoid valve (EGR) <-----disabled/removed
30 - Solenoid valve (split air bypass) <-----disabled/removed
34 - Solenoid valve (idle speed control) <-----unplugged
38 - Solenoid valve (accelerated warm up system) <-----disabled/removed
05 - Knock sensor ??????
28 - Solenoid valve (EGR) <-----disabled/removed
30 - Solenoid valve (split air bypass) <-----disabled/removed
34 - Solenoid valve (idle speed control) <-----unplugged
38 - Solenoid valve (accelerated warm up system) <-----disabled/removed
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03-31-12, 09:00 PM
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dorito spinner
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I took out the alternator and found where the g/b CAS wires were cut and half-assed back together. i crimped new ends on and half-assed them back together again, and now the car starts, runs, and goes fast. do this readout look ok at idle? the pfc didnt seem to go through a learning process....is this because i had it mapped?
04-02-12, 12:50 PM
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Hope its okay to hijack your thread a little, I have the same problem as you had in the first place but my commander doesn`t start at all and I have tried 2 PFC in the car but the stock ecu (Knight Sport ECU) it fires up.
Any ideès?
Any ideès?
Thanks
07-07-12, 01:43 PM
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Do I have wrong diagram??
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