I bought a MAF conversion kit from IST. Installed a new cam and a tweecer unit. My 02 sensors read 0 volts. I have tried pretty much everything
new ecu new sensors. I've checked and rechecked and checked again all the wiring and cant seem to figure the problem out. The kit includes an 02 Harness that plugs in to your original one and provides the provision for the driver's side sensor and has a signal wire that goes to pin 43. Pin 29 is the signal for the pass side. Everything is connected to the right place
the signal wires have voltages the 02 sensors heat up and work but no signal to the computer. Pretty good head scratcher for me
Seen some guys on here have some expereince with these kits and swaps
maybe shed some light/share your experience on this with me. Thanks

I suppose I should also add that my truck is a 5 speed and that IST sent me an A9P ecu with the kit not an A9L I've read about differences on the 02 harnesses between the 5 speed and auto mustang's but I assume this wouldn't necessarily apply here since it's the truck. Maybe I need the A9L ecu since its manual?? But that wouldn't make sense. Pretty darn confused at this point