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Location:
Terrigal
Registered:
May 2002
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4AGZE running VERY rich
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Mon, 24 January 2005 11:19
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Hi all, just recently I wired up a mates T18/4AGZE conversion.
It is the AFM 4AGZE.
After wiring it up started first go and everyone was happy. But he has just contacted me to let me know its running really rich.
I'm trying to get some ideas together of what it might be.
He has checked the fuel pressure, around 37psi at idle and 44psi hi up. So that about right.
I adjusted the TPS correctly so thats not the problem.
The ECU, that bases fuel on AFM signal, TPS & engine speed I assume?
So any ideas where its going wrong?
We arn't talking just a bit rich either, he has access to a wideband 02 meter and it was off the scale (not sure actual figure here but reckons the meter wouldn't even read it when at full throttle).
So i'm guessing that has to be under 10:1 ...
For now he has adjusted the AFM spring tension so at cruise it is correct. But still going way rich at full throttle. And I dont think adjusting the spring is a good idea, it seems a bandaid sollution for the real problem.
Everything is stock really. All came out of a frontcut.
So any ideas?
Thanks
Joel
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Location:
sydney
Registered:
March 2003
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Re: 4AGZE running VERY rich
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Mon, 24 January 2005 12:11
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hey joel is the air flow meter wired up
they do run thru another section of wiring
also the air temp wire
and the knock sensor wiring
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Location:
Terrigal
Registered:
May 2002
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Re: 4AGZE running VERY rich
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Mon, 24 January 2005 22:14
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Hey Jim, how are you mate?
When I wired it up I didn't need to make any changes to the AFM wiring. They all seemed to go to the ECU apart from 1 wire which was earth.
I'll have to check the air temp wire.
At the moment the knock sensor wire isn't connected. Can this cause it to run rich?
I noticed for the 4ag ECU there is a list of each pin on the ecu and what reading it should have. Anyone know if there is something like this for the 4agze?
THanks
Joel
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