Have been trying to delimit the Z but to no avail. Have put a new chip in the ecu but dosent work. Will only run on 3 cylinders then. Bought a new ecu but still no luck. Don't wnt to put the new chip in the ecu yet as it may well bugger both.

 

Noticed that the old ECU I have is different. It had a mitsubishi chip in it (which was destroyed by the guy putting the new chip in).

 

Anyone know where I can get a new upgraded chip that will fit my old ECU and delimit the car and turn it into MPH.

 

The old ECU unit is an impul motor racing development one. It says hi-power control unit on the top with a serial number of Z32M-N003.

 

Any advice would be appreciated

 

Darrell

I have a Manual TT ECU chipped with a John Dixon medium-Aggressive Remap for sale : http://www.300zx.co.uk/forums/showthread.php?t=77257

You can't turn the speedo into MPH by chaning the ECU chip, you need either a speedo converter box, or a UK speedo, or to change some resistors in the Jap speedo.

Incidentky, running on 3 cylinders is not likely to be the ECU, more like a wiring problem somewhere (depending on which 3 cylinders), or perhaps a PTU problem.

Very rough running and poor idle is a indication of ECU problem, such as corrupt data or incorrect fitting. It can also just be the big blue ECU plug is not plugged in correctly.

 

Does the Aux fan come on as well when you switch on the ignition ?