mobile mechanic

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Originally Posted by Blknight.aus

ok its cranking so thats the XYZ switch, the batteries, the immobiliser, the ignition, starter+ solenoid ruled out. Excelent halfway there.

have you checked the connections on the crank angle sensor, security of the injector harness plug, and reset the inertia switch?

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Blknight
let you now how lm going ,l have got new crank angle sensor in , had a Friend come down with a hawkeye had to do allot of fault clearing did the test , ran all the test that was possible to do, even removed the dreaded 3 amigos , the m+s are gone as well , she is still not starting .Only cranking over the Hawkeye has come up with a fault reading cm rom checksum error no number just the words. re ran the test over checked the connections to ecm unit gave it clean out ,same problem error again checksum error shes still cranking and thats all she is doing .its starting to do my head in :confused::confused::confused: can l send the ecm away to get tested or is there a easyer fix ????

temp swap the ECU into another vehicle and see if the fault follows it.

a checksum error usually indicated gibberish coming from something on the bus.

Try disconnecting all the body modules if the fault doesnt follow the ECU to another vehicle and see what you get.

Just had a look at RAVE, if the fuel pump relay fails, the symptons are;

engine will crank, but will not start

if the engine is running it will stop.

The MIL [malfunction indicator lamp] will not illuminate in a fuel pump relay failure.
The Main relay has the same symptons if it fails. the main relay is no. 11 in the main engine compt. fuse box, the fuel pump relay no.13. the CKP , if fitted incorrectly ,engine will not start, but the MIL is on. May be way off the mark, but hope it helps. Bob

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Originally Posted by bob10

Just had a look at RAVE, if the fuel pump relay fails, the symptons are;

engine will crank, but will not start

if the engine is running it will stop.

The MIL [malfunction indicator lamp] will not illuminate in a fuel pump relay failure.
The Main relay has the same symptons if it fails. the main relay is no. 11 in the main engine compt. fuse box, the fuel pump relay no.13. the CKP , if fitted incorrectly ,engine will not start, but the MIL is on. May be way off the mark, but hope it helps. Bob

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thanks Bob

I will have another look.. just got of the phone with alien d2 suggest l unhook a line from the temp sensor and see if theres any diesel pumping out.

thanks What-the??

skip that...

just unplug and unscrew the fuel drain on the filter then turn the ignition on, if you get nothing there then the fuel pump is not doing its bit.

The missing sound of the fuel pump is usually pretty obvious.

Quote:

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Originally Posted by Blknight.aus

temp swap the ECU into another vehicle and see if the fault follows it.

a checksum error usually indicated gibberish coming from something on the bus.

Try disconnecting all the body modules if the fault doesnt follow the ECU to another vehicle and see what you get.

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Blknight
just a silly question. if l swap the ecm just to test in the disco will it be ok or is there a way of doing it. will it damage the borrowed one? https://www.aulro.com/afvb/images/im...12/07/1222.jpg

Does heaps of white smoke come from the exhaust while you are cranking the engie

mnooo

you take your ecu and put it in another vehicle then see if the symptoms move from your vehicle to another.

If they do its the ECU if they dont its the vehicle.

Does heaps of white smoke come from the exhaust while you are cranking the engie

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Originally Posted by thexprinter

Does heaps of white smoke come from the exhaust while you are cranking the engie

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No smoke at all not even a puff which you might think with all that cranking that l have done in the last 2 weeks .
Thanks