Walkers Bay
Member
- Joined
- Sep 17, 2018
- Messages
- 33
- Reaction score
- 2
- Points
- 8
- Age
- 40
- Location
- New Zealand
- Members Ride
- Vs Commodore
So long yarn short.
I have a 304 in a VS Calais. Nice enough car, strong motor, 140km, HSV chip and knock sensor.
It starts, idles, does everything it should right up til the computer goes into closed loop.
Then it will not power away, splutters under heavy acceleration, you couldn't pass a car f you wanted.
Pop a lead off a sensor, trick it into open loop again and goes great again.
2 completely different motors in the same car.
I've tired...
Fuel pump and regulators (both)
Computer and Memcal
Tested the temp sensor (computer)
Tested TPS
Checked O2, even back probed and drove with it
Timing
Idle sensor, tick.
Changed the intake manifold gaskets.
Vacuum lines, checked and replaced as required.
What else could could it to fall so flat in the closed loop?
I have a 304 in a VS Calais. Nice enough car, strong motor, 140km, HSV chip and knock sensor.
It starts, idles, does everything it should right up til the computer goes into closed loop.
Then it will not power away, splutters under heavy acceleration, you couldn't pass a car f you wanted.
Pop a lead off a sensor, trick it into open loop again and goes great again.
2 completely different motors in the same car.
I've tired...
Fuel pump and regulators (both)
Computer and Memcal
Tested the temp sensor (computer)
Tested TPS
Checked O2, even back probed and drove with it
Timing
Idle sensor, tick.
Changed the intake manifold gaskets.
Vacuum lines, checked and replaced as required.
What else could could it to fall so flat in the closed loop?