Why does it seem like my injectors are stuck open?

1990 GMC SUBURBAN

167,000 MILES

RIKGRIZ

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Out of the blue my injectors started dumping loads of fuel out of them. I ran a diagnostic and it showed a faulty MAP sensor. replaced it. Then it showed a faulty TPS. I tested the TPS and rechecked the codes and it cleared. However, it is still flooding the engine with gas. Thius is a TBI 350, totally stock. I'm stumped. What else should I check or change?

Mar 6, 2012 at 1:14 AM

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RASMATAZ

CAR REPAIR CONTRIBUTOR
75,992 POSTS

Start by checking the fuel pressure with a gauge-

Mar 6, 2012 at 2:13 AM

CADIEMAN

CAR REPAIR CONTRIBUTOR
3,544 POSTS

check the injecters for a drip at the injecters driping the intake.

Mar 6, 2012 at 2:44 AM