Ecu & Tcl Fault Codes, 1995 Mitsi Diamante 6g72 DOHC MIVEC

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Derek - 19 Oct 2004 10:07 GMT

We currently have a 95 Diamante in the workshop at the moment. has an
intermittant cut out problem - seems mostly on corners at slow speed. direct
cut - like fuel or ignition. the fault codes appear when bridging pin #1
(fault code mode trigger) and #4 (earth) - ECU lamp shows fault code - 32 -
TCL lamp shows fault code - 75. 32 = MAP sensor. 75 I have no idea, havent
been able find information on this anywhere. Is anyone able to help with
this - is it a common problem, what does fault code 75 mean?!?

I have checked all voltages, powersupplies and earths on the map sensor. it
appears to work fine. 1.3V at idle within spec. but I dont have an ECU pin
diagram so I cant work out which pin it is to see if the working Map sensor
is getting its signal to the ECU itself. Anyw help would be much
appreciated, thanks

Derek

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Walter - 19 Oct 2004 10:53 GMT

> We currently have a 95 Diamante in the workshop at the moment. has an
> intermittant cut out problem - seems mostly on corners at slow speed. direct
[quoted text clipped - 11 lines]
>
> Derek

It has been my experience that a map sensor won't make any whole system
shut down. If you are registering codes in the computer, chances are
good you have a bad connection somewhere if everything else appears
okay. At idle, go around the engine compartment wiggling connectors to
see if you find a change. Also, look for bare wires on or near the fuel
pump. Stranger things have happened.

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