fuel pressure specs
Thread Starter
Heel & Toe
Joined: Sep 2003
Posts: 21
Likes: 0
From: manteca calif
fuel pressure specs
how much fuel pressure should my 93 have like i have ststed before i still have a bucking problem on easy accleration from about 45mph on up and it is very in consistent any ideas or help please :confused:
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: fuel pressure specs (rowdyrick93)
Should be 38-40psi at idle, and 43-45 at WOT.
If you have a bucking problem, you might have a bad opti spark.
Does it happen at low rpm on heavy load?
Pull a code with scan tool. Code 16 is usually associated. Also, check for leaks under the waterpump. Moisture is what kills these.
If you want my complete Opti Replacement and Vent Guide. IM me your email address. (but let's not jump to conclusions yet)
Also might wanna change those plugs and wires first, considering you're going to want to anyway if it is the opti.
If you have a bucking problem, you might have a bad opti spark.
Does it happen at low rpm on heavy load?
Pull a code with scan tool. Code 16 is usually associated. Also, check for leaks under the waterpump. Moisture is what kills these.
If you want my complete Opti Replacement and Vent Guide. IM me your email address. (but let's not jump to conclusions yet)
Also might wanna change those plugs and wires first, considering you're going to want to anyway if it is the opti.
Thread Starter
Heel & Toe
Joined: Sep 2003
Posts: 21
Likes: 0
From: manteca calif
Re: fuel pressure specs (vvv90)
well i am beginning to think the opti spark unit is the problem.the dealer that sold me the car is doing a check on the car as we speak the day we bought it it did not even make it home so i went back and the salesman said it was proably water from when the steamed it he also said if it didnt fix the problem they would so iam hoping my email address is rowdyrick14385@aol.com please let me now wht you got thanks :chevy
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: fuel pressure specs (rowdyrick93)
it has 59000 miles on it :cheers:
