So I have a 91 Civic DX with a JDM D15B. I already MPFI coverted and OBD-1 coverted too. However, the ECU is a automatic P28. Also my VTEC ISN'T WORKING! .

Also the intake mani is from an A6. Can the map from the firewall of the car be affecting this? Since the map on the tb isn't on there with the stock IM from the motor.

So in escence.
The D15B IM doesn't have a fuel rail so it's not on the motor.
A6 IM is on the motor but the stock map from the car is being used. Only the TPS is on the TB.

I'll post up a video of how ridiculus this hard idle is. But in the meantime any comments?

Thanks all

 

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