Originally Posted by
VE-Baller Ok thanks.
This is what the log shows when I have the problem. Foot to the floor but hesitation - Revs rise and fall.
Im pretty sure it tells us nothing.
Summary
3.76 Volts wide open throttle.
4 Volts max MAF
Timing 16
Revs 5500
Injector 65% duty
Time RPM Bat TPS Tim Inj Dty Air Flow
25:02.4 4900 12.96 3.76 15 11.98 48 3.68
25:02.5 4937 12.96 3.76 15 12.08 49 3.7
Here's my take on your datalog.
Battery: The battery voltage is low. You got a dying or already dead alternator. With a healthy working alternator charging, you should see high 13 volts to over 14 volts. Battery voltage by itself is in the 12 volt range.
TPS: is out out of adjustment. Should be .45-.55 at idle and 4 volts at WOT. You don't want to be 4.5 volt at WOT that will send a false disconnected signal to the ecu. Just disconnect the tps and you will see this voltage for the tps.
Timing: is really low. Seems like it's running in a fail safe mode. Again, look at the timing map I posted for reference.
Conclusion is you go a lot of things to sort out.