Z6 swapped RT4WD, won't idle and slow acceleration...
LowFlyin'
Moderator
Hey guys (and gals?),
I'm stuck trying to get my wagon going again.
It is a '91 RT4WD.
I have a D16Z6 that was running great when pulled not to long ago.
The A6 that was in the chassis before was running fine...just ate oil and eventually the #4 rod bearing.
I'm using the OE harness with OBD1 8+2 pigtails wired in.
ECU is not throwing any codes...and the engine will stay running with throttle input.
The engine is slow to start and if I leave the throttle alone it will die after it struggles during warm-up. Once it warms up, it will die within a sec or two of catching.
If you give it throttle it will rev to the limiter and if you hold an RPM, it sounds bubbly. Not so much like it is missing, just sounds like 4.6 mod engine idling.
Car has little power. I did a pull from 50mph in 3rd and it felt like I was doing 120mph in 5th and trying to accelerate.
Things I have tried:
New spark plugs, new wires, freshly cleaned injectors. Cam and crank are verified in-time as of this afternoon (dead-nuts on both marks).
Also, it doesn't do it every time, but it feels/sounds like there is a pre-ignition when starting.
Any help would be much appreciated. I am not driving the car right now.
I'm stuck trying to get my wagon going again.
It is a '91 RT4WD.
I have a D16Z6 that was running great when pulled not to long ago.
The A6 that was in the chassis before was running fine...just ate oil and eventually the #4 rod bearing.
I'm using the OE harness with OBD1 8+2 pigtails wired in.
ECU is not throwing any codes...and the engine will stay running with throttle input.
The engine is slow to start and if I leave the throttle alone it will die after it struggles during warm-up. Once it warms up, it will die within a sec or two of catching.
If you give it throttle it will rev to the limiter and if you hold an RPM, it sounds bubbly. Not so much like it is missing, just sounds like 4.6 mod engine idling.
Car has little power. I did a pull from 50mph in 3rd and it felt like I was doing 120mph in 5th and trying to accelerate.
Things I have tried:
New spark plugs, new wires, freshly cleaned injectors. Cam and crank are verified in-time as of this afternoon (dead-nuts on both marks).
Also, it doesn't do it every time, but it feels/sounds like there is a pre-ignition when starting.
Any help would be much appreciated. I am not driving the car right now.
Comments
I runs much better now and it will hold an idle.
...but the timing light is showing 35-40º advanced and the ECU is throwing a 9 code.
I am using a 2 belt pulley from a CRX since I have converted to a manual rack...but the TDC mark is lining up where it should be.
I don't know how comfortable I feel having to retard the cam...and it still being about 20-25º advanced more than it should be.
I do plan on boosting this once I get it sorted. Thoughts?
A/C components ordered...here's too cooler weather in my wagon!