1990 3.3

charlie40 · #1 10-16-2011, 02:35 PM

i have a 90 cutless that idles rough and when put under load will not respond. sounds like it is starving. i have replaced fuel pump, plugs, wires,fuel press reg. when i turn on key i have fuel press for a aminute then it drops off. when i start the car it stays about 35 to 40 lbs. also replaced icm. any thoughts about what is next.?

Tech II · #2 10-16-2011, 08:30 PM

See if it runs better with the MAF sensor disconnected....

Have you checked coil output with a spark tester?

Replace fuel filter?

Check for codes?

charlie40 · #3 10-23-2011, 11:03 AM

got it replaced fuel rail and injectors runs great. thanks for looking

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