1jzgte electrical issue

**wilbo666** · 29-04-2007, 08:45 PM

Originally Posted by cambelt1

What tacho booster are you using , sounds like somethings a miss with it .
Dave

I doubt it is the tacho booster, as you can see the IGf line doing silly things.

The tacho output from the igniter doesn't goto the ECU...

Also the car has done over say ~30000km with the same tacho booster...

However it is that simply circuit that is floating around.

Norbie: Yeah I think I'll have to try and find a JZZ30 ecu to try (know anyone?)

Cheers
Wilbo

**manny** · 29-04-2007, 09:03 PM

PM'd you mate

**Ribfeast** · 30-04-2007, 11:21 AM

Make sure the tacho booster has a diode on it.
I used to get IGF errors intermittently til I added one.
When my CAS was smashed I got that error too, so maybe check condition of CAS and its wiring.

**wilbo666** · 30-04-2007, 12:12 PM

Originally Posted by Ribfeast

Make sure the tacho booster has a diode on it.
I used to get IGF errors intermittently til I added one.
When my CAS was smashed I got that error too, so maybe check condition of CAS and its wiring.

Was your tacho doing other crazy things etc?

I didn't have a diode, but I've since added one...

(I can't really see how this would effect it but hmm!)

Cheers
Wilbo

**Ribfeast** · 30-04-2007, 04:32 PM

It did crazy things when the CAS got banged up

Tacho has always worked fine with the booster though, with and without diode.
I might be barking up the wrong tree with the diode, I have other theories about why the ECU kept popping that error: The timing was out by a whole tooth on the crank itself (pulleys were ok though).

**wilbo666** · 30-04-2007, 04:42 PM

Originally Posted by Ribfeast

It did crazy things when the CAS got banged up

Tacho has always worked fine with the booster though, with and without diode.
I might be barking up the wrong tree with the diode, I have other theories about why the ECU kept popping that error: The timing was out by a whole tooth on the crank itself (pulleys were ok though).

Just going out on a limb but the timing being out a whole tooth on the crank might put the spark so far out of wack that proper ignition (and hence IGf) wasn't occurring?!

Still worth a try