3.1 spark and fuel good
Thread Starter
CF Beginner
Joined: Dec 2011
Posts: 2
Likes: 0
3.1 spark and fuel good
hi guys i have a 1991 pontiac sunbird 3.1 engine and it has 42 psi for fuel pressure and has spark but still wont run it cranks over good could it be the timing belt do you think
CF Monarch
Joined: Apr 2012
Posts: 6,210
Likes: 436
From: Miami, FL.
42 psi is not enough pressure for fuel injected cars. Take the distributor cap off and see if the rotor spins while cranking. This will tell you if the timing belt is broken, It could be there with teeth missing, however.
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