Hi guys,
We are at it again with another commodore doing crazy stuff. This is a VS 5.0 ute (MAP) .
it floods itself on cranking every time. If I put my modified (for real time tuning)808 in it
it starts perfect. same memcal as before. So right its ecu we think, chase up an new ecu
and its exactly the same as the original. But put my ecu in it ,it starts every time. WTF
been through the wiring to the ecu everything seems correct, no fault codes, swapped injectors same result
.if I edit the chip and close down the bpw it starts most times, but I shouldn't have to.
So my question is whats different between a real time 808 and the 3082 that will alter cranking pulse width
so much? open to suggestionms other wise my realtime ecu is leaving the building......
VS 5.0 flooding on cranking
Re: VS 5.0 flooding on cranking
Have you logged it?
Had this with a dicked coolant temp sensor, check what data the ECU is seeing.
Had this with a dicked coolant temp sensor, check what data the ECU is seeing.
According to chemistry, alcohol is a solution...
Re: VS 5.0 flooding on cranking
all sensors read correct , even on cranking
Re: VS 5.0 flooding on cranking
Is it a modified memcal? Maybe try a genuine v8 memcal.
The 3082 can do stuff like that with different memcals.
Ive had a few do it but they were mostly hsv.
I would think if it were ecu temp sensor it wouldn't matter what ecu
or memcal is in it.
The 3082 can do stuff like that with different memcals.
Ive had a few do it but they were mostly hsv.
I would think if it were ecu temp sensor it wouldn't matter what ecu
or memcal is in it.
Re: VS 5.0 flooding on cranking
two different memcals same result unfortunatly
- Holden202T
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Re: VS 5.0 flooding on cranking
can you confirm if the injectors are stock size ?
it kinda sounds like the difference might be in the memcals, your modified one is not setup for 6 cylinder or something stupid like that is it ?
if your modified one works but other ecm's don't and you've tried more than one standard memcal then I'd be inclined to 1. try your modified memcal in the other computers, and if that works you at least know its a difference between your memcal and nothing to do with the computers.
you could also try your stock memcals in your modified ecm and see if you get the same richness ....
without knowing whats been done to the motor and whats in your modified tune theres really too many variables.
it kinda sounds like the difference might be in the memcals, your modified one is not setup for 6 cylinder or something stupid like that is it ?
if your modified one works but other ecm's don't and you've tried more than one standard memcal then I'd be inclined to 1. try your modified memcal in the other computers, and if that works you at least know its a difference between your memcal and nothing to do with the computers.
you could also try your stock memcals in your modified ecm and see if you get the same richness ....
without knowing whats been done to the motor and whats in your modified tune theres really too many variables.
No matter what the question is, the answer is always more horsepower!
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Re: VS 5.0 flooding on cranking
Engine is totally stock. it has had a wiring loom change but best I can tell everything is wired corrdectly and all earths are there.
I think it must be a security glitch or something. As I said I have tried two different vs v8 ecus and they both do the same thing, same with 2 different v8 memcals same result. it only starts with my modded 808. and best I can tell the only real difference is the security features.
I have tried turning security off with a custom memcal, no different. if I modify the bpw on cranking in a chip the VS ecus start most times but not everytime. I cant send it out like that . if I use my ecu it starts with the stock memcal everytime! There must be something in the cranking cycly that is different between the ecus, but I cant find it .....
I think it must be a security glitch or something. As I said I have tried two different vs v8 ecus and they both do the same thing, same with 2 different v8 memcals same result. it only starts with my modded 808. and best I can tell the only real difference is the security features.
I have tried turning security off with a custom memcal, no different. if I modify the bpw on cranking in a chip the VS ecus start most times but not everytime. I cant send it out like that . if I use my ecu it starts with the stock memcal everytime! There must be something in the cranking cycly that is different between the ecus, but I cant find it .....
- Holden202T
- Posts: 10311
- Joined: Sat Feb 28, 2009 9:05 pm
- Location: Tenambit, NSW
- Contact:
Re: VS 5.0 flooding on cranking
what tune are you using on the modified one compared to the stock ones ?
No matter what the question is, the answer is always more horsepower!
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread