Z18XER inlet timing fault

[Jon1796]

That's for camshaft sensor his code was for vvt solenoid i think.

yep that was me reading one thing looking at another.

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[Jon1796]

Have you tried doing a data run to see the various values.

[JagRigger]

30048443-292A-4030-A3B9-9FD164F3820D.jpgRight - had one last mechanical play yesterday. All ok. So sat there last night with the old engine loom ( injectors etc ) and a spare Astra ECU and figured out which contacts affect the VVT solenoids. Checked same loom on car this morning and all con checked ok. So…. Onto pins at ECU and con check harness from UEC. Waggle harness and resistance is all over the place including going open circuit. That’ll be my next task then ….

[troutybrown]

So we talking UEC and connections to fuse 14?

[JagRigger]

TBH I’ve no idea what fuse - checked / replaced all them a few days ago. Having removed the UEC I’m getting a breakdown somewhere in the loom. Be off in five minutes, then an afternoon in the sun with a multimeter …,

[troutybrown]

Fuse 14 is the feed for cam sensors, solenoids and oxygen sensors according to wiring diagram.

[JagRigger]

I’m no leckie, but if I have a varying resistance it’s got to be wiring. And…..image.jpg

[northpole]

well looks like you've found the culprit... now time to cut clean and re-solder with some nice heat-shrink to make sure it's working as it should.

[troutybrown]

I’m no leckie, but if I have a varying resistance it’s got to be wiring. And…..image.jpg

There u go another ecu to uec loom required well done that man.
Can also work out what it was chafing against.

[JagRigger]

Wasn’t chaffing. That’s got wet from coolant venting, found a small hole and rotted out. Wife’s Astra H did similar except she lost power to the ECU completely C901A13C-F200-46FA-9D31-52C3B70006BC.jpg