Fuel pressure

Tiny
052361
  • MEMBER
  • 1988 DODGE LANCER
  • 2.5L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 200,000 MILES
I have been having problems with my old car.
I tried to do a fuel pressure test on it and had fuel comming out of the top of the pressure regulator. So I replaced the regulator with one from a 1994 Dodge Shadow, from salvage.
My pressure is between 35 and 40 psi when it should be 15 psi.
I removed the return line from the throttle body and ran a line to a gas can but the pressure remains high, still 35 to 40 psi.
What should I do now?
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Saturday, September 24th, 2016 AT 1:43 PM

2 Replies

Tiny
052361
  • MEMBER
  • 98 POSTS
When I get the engine running it dies within a minute. If I give it gas it backfires through the throttle body.
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Saturday, September 24th, 2016 AT 2:24 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check for bad plugs as you are getting a backfire or a bad wire also check compression.
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Sunday, September 25th, 2016 AT 8:34 AM

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