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Richard Allen
Tinkerer
Queensland
V8

Posts: 7
Reg: 03-2010

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 Tuesday, February 22, 2011 - 09:56 pm, by:  Richard Allen (Fangio) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
After spending mucho dinero It appears that reason my V8 wont start is that injectors not pulsing. Has anyone experienced a similar problem and if so how was problem fixed?
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 12034
Reg: 11-2004

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 Wednesday, February 23, 2011 - 12:29 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
It could be the main ECU. Failed capacitors can cause the injectors to just stay open - happened to me.
Richard Allen
Tinkerer
Queensland
V8

Posts: 8
Reg: 03-2010

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 Wednesday, February 23, 2011 - 08:31 am, by:  Richard Allen (Fangio) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
I just had main ECU rebuilt (allegedly) by computer guy to address problem of not starting. Car still will not start
. Is there any test to confirm if capacitors in ECU are fully functional?
Allan Langford
TryHard
Vic
UZZ31

Posts: 320
Reg: 05-2010

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 Wednesday, February 23, 2011 - 09:37 am, by:  Allan Langford (Allan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
swap the ecu into a running car is about the only way to test it.

i would suggest you pop an injector plug off and check there is power at one of the pin's with the ignition on.

also check you have spark, if you don't it might be a cam/crank trigger issue
Richard Allen
Tinkerer
Queensland
V8

Posts: 9
Reg: 03-2010

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 Thursday, February 24, 2011 - 02:29 am, by:  Richard Allen (Fangio) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Thank you guys for your input.
I have spark.

I also have had crank handle sensor replaced.
I am now having serious doubts that main ECU was rebuilt. Could you tell me where it is located in car to allow me to check if it has been touched? thanks heaps
Blake Gloyn
DieHard
manawatu
soarer JZZ30 TT

Posts: 634
Reg: 02-2006

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 Thursday, February 24, 2011 - 08:21 am, by:  Blake Gloyn (Blakenz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
"crank HANDLE sensor" Good one. Made me laugh. :-)
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 12035
Reg: 11-2004

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 Friday, February 25, 2011 - 10:50 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Main ECU is under passengers feet.

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