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Injector issue - Please help

Stirlo_GTR

By Stirlo_GTR,
in Engines & Forced Induction

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Stirlo_GTR Rising Star

Stirlo_GTR

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Hi guys,

Well this has been an on going issue now, but I am finnaly getting somewhere.

I wont go into everything, but I have had a turbo go and my throttle cable come off (at the same time) and car has not run since.

The engine is ok. I have now replaced the turbos, but the Injectors will not fire and hence it wont start.

I have tested the injectors with a golbe and they are not getting any power/signal.

I am sure that it will run once they are firing but I can not work out why they wont fire.

The fuel rail has pressure, I have had the TPS out and it tested fine but has been rebuilt to make sure.

The throttle system seams to be working fine.

We have perfect spark.

just no fuel.

I have thought about trying a different ECU but surely given spark is ok it wont be the ecu? Perhaps its the Injector power supply? is there a fuse for the injectors?

Any ideas? very frustrated....

Cheers Stirlo!

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https://www.sau.com.au/forums/topic/67144-injector-issue-please-help/
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Stirlo_GTR Rising Star

Stirlo_GTR

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its not actually in any of the fuse box's, we have gone that avenue, but think that it may be the GTR's injector control system? as it may have failed or have a fuse in it. But we dont know where it is and or how it works, the 32GTR service manual does not specify (ie where the power supply is located or how does the control system work?)

GTRgeoff Grand Master

GTRgeoff

Posted
Posted

Power to the injectors is constant through the resistor pack, and the injectors are earthed through the ECU with individual wires to open them. The resistor pack is on the drivers inner guard and has one power wire in and six out to each injectors so this is a likely start. I don't recall a fuse though but may be wrong.

Good luck.

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