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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

3.0 starts won't stay running.

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Old Mar 11, 2015 | 09:27 AM
  #1  
Nathan_F's Avatar
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3.0 starts won't stay running.

Replaced my 3.0 and all tune up parts. Acts like the cold start is working but after that nothing. Has fuel pressure and spark. Been working on this thing way too long. Help
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Old Mar 11, 2015 | 09:41 AM
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"starts won't stay running" is the classic symptom of a VAF-COR issue.

How do you know you have fuel pressure? If you "loosened a fitting and it sprayed all over the place" when you turned the key, that doesn't tell you anything about the fuel pressure when you let go of the key.
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Old Mar 11, 2015 | 09:48 AM
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Originally Posted by scope103
"starts won't stay running" is the classic symptom of a VAF-COR issue.

How do you know you have fuel pressure? If you "loosened a fitting and it sprayed all over the place" when you turned the key, that doesn't tell you anything about the fuel pressure when you let go of the key.
That was a stupid one on my part. Was doing some assuming. Will it pop codes if the engine has not run continuously since install? My 1st step I will check FP with pressure gauge. Stay tuned and any advice would be appreciated.
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