Hey guys - I have been chasing a problem for a while. I have a 1kd hilux that has a unique fault. As you accelerate through the gears it goes fine until you clutch for the next gear (usually 3rd/4th) where it goes into a sort of limp mode with no lights. The car still responds but it is as if the first half of the throttle pedal is non existant. If you clutch in, drop to idle for a few seconds it returns to normal.
Things I have tried:
1 No pending or stored codes
2 Rail pressure is fine with no drops out of the normal
3 New injectors / pump and filters have been installed (fuel manager pre filter in place)
4 new throttle pedal
5 swapped out the throttle body and associated stepper motor and tps
6 test turbo boost - gets the prerequisite 15psi
7 disconnect battery and do a memory fade - appears to work but then comes back
8 cleaned manifold, MAF and MAP vacuum surge
Modifications the car has:
1 Snorkel with K&N filter - snorkel has been on long before the issues started - have swapped K&N out and in no change
2 Front mount intercooler
3 2 3/4" beaudesert exhaust - been on long before issue
4 EGT probe - no issues with exhaust temps
5 EGR blank with 8mm hole installed
One concern I do have is when I fabricated the intercooler piping I may have swapped out the MAP sensor with a later model one (apparently there is a change mid '06?) where the voltage read is under 2 volts but the earlier ones reads up to 3.5 volts
Any help or comments to point me in directions not looked at would be great!
Cheers
Mal