injector problem?

For discussing injector selection, manifold modifications, throttle bodies, fuel supply system design and construction, and FIdle valves and IACs.
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wicked93gs
MegaSquirt Newbie
Posts: 2
Joined: Wed Mar 02, 2005 9:04 am

injector problem?

Post by wicked93gs »

well i am posting in this forum because I am using megatune to tune with...I have a problem, I am using v2.2 and 36lb low impedance injectors, up until yesterday my car ran fine at 75% PWM, but yesterday it died and wouldnt start again...after messing with it today I finally got it started and it started idle surging(rpm jumping up and down from 500 to 1000 over and over again) and while idle surge is a common problem in MAF cars, it shouldnt happen in a MAP setup...anyway, after playing with my PWM% for awhile I found that after setting it to 60% my idle smoothed back out to normal, but considering I dont have the flyback board I didnt want to fry that circuit, so I switched it back to 75%, and it promptly started idle surging again, I revved it up a bit and then it died again and I havent been able to get it started since...what does this seem like to you guys? injectors going bad?(after all they do have 150K+ miles on them)
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