Car not starting.. any ideas?

robert26t · Post by **robert26t** » Mon Dec 26, 2011 2:05 pm

Update: there is 12v going to the temp sender. Mutlimeter read 8v to the injectors. I've checked the timing and all seems ok. And ive cleaned up the terminals on the earth cable, both on the block and chassis.

redzone · Post by **redzone** » Mon Dec 26, 2011 4:49 pm

Get a multimeter & check that the ecu is pulling the injectors to ground on one pin :)

robert26t · Post by **robert26t** » Mon Dec 26, 2011 8:37 pm

Sorry Dave, not sure what you mean by that??

redzone · Post by **redzone** » Mon Dec 26, 2011 8:58 pm

Injectors are fed a constant positive feed & the ecu pulls one pin to ground thereby energising the coil in the injector, so basically they're negative switching..

robert26t · Post by **robert26t** » Tue Dec 27, 2011 7:55 am

oh i get ya. Ill check that tonight

robert26t · Post by **robert26t** » Wed Dec 28, 2011 6:41 pm

Dave, I'm just having a look now. What's the best way of testing the negative switching on the injectors? I've tried the buzzer bit on my multimeter but I can't get a response

starionc · Post by **starionc** » Wed Dec 28, 2011 11:01 pm

Rob are you working today? I'll come by with a few bits and bobs for us to swap and try to see if we cant work it out. :beer :beer
I'm working locally from 11 til about 2 or 3pm Can come around after that.

redzone · Post by **redzone** » Wed Dec 28, 2011 11:03 pm

Does your multimeter have a frequency measurement?

robert26t · Post by **robert26t** » Thu Dec 29, 2011 7:48 am

Nah at work as per usual. Boss is on holidays.

Im not sure about frequency. Ive got one at work thats much better then mine that I could pinch. Im sure that will have it. Ill let you know.

Thanks for your help everyone

robert26t · Post by **robert26t** » Thu Dec 29, 2011 5:10 pm

I don't think my multimeter has it. Frequencies is probably getting beyond my knowledge.

Is anyone local that's more swiched on then me up for a cash job to help me out? Where my car is at the moment will be a nightmare to get out without it running. Otherwise I would tow it somewhere :(

robert26t · Post by **robert26t** » Thu Dec 29, 2011 5:33 pm

Actually, wait!

I'm getting fuel coming out the return line.

I just plugged a spare injector in and no fuel is coming out what so ever.

So basically, the fuel pump is working but I'm not getting fuel past the injectors.

What would stop the injectors from firing??

dirtygalant · Post by **dirtygalant** » Thu Dec 29, 2011 5:36 pm

it's getting spark right? but is the ECU getting signal that the engine is turning over?

robert26t · Post by **robert26t** » Thu Dec 29, 2011 5:43 pm

Yes, 100% getting spark. Don't know about ecu getting signal. How do I check that?

robert26t · Post by **robert26t** » Fri Dec 30, 2011 9:30 pm

Turns out I was getting fuel. When I tested it I wasn't getting fuel.

Anyway long story short, many beers later and late night troubleshooting with john196701 and starionc. Turns out it was bloody spark plugs. Got new ones in and runs good as gold.

For the record the plugs in the car were less then 12 months old and the car has hardly done 5kms in that time.

Thanks to everyone that helped me. Much appreciated!

FST4RD · Post by **FST4RD** » Sat Dec 31, 2011 3:13 pm

What happened to the sparkplugs?

Austarion

Car not starting.. any ideas?

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