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Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

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Old 12-08-2001, 04:54 PM   #1
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loose spark at 300-3500rpms HELP!!

Hey, I have a 88 305 tpi f code motor. When it gets to about 3500 rpms it cuts out (checked spark none when it cuts out) It will start right back up. I just took the smog pump off and put in new injectors in. Seamed like it started after this. It also sends out a code 42 est. what to try first???
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Old 12-09-2001, 01:43 PM   #2
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That should be 3000-3500 rpm the spark cuts out. someone must have an idea!!
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Old 12-10-2001, 02:20 PM   #3
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Sometimes when modules go they get flaky at certain RPMs. There is also the pick up inside the distributor (although when they go they are rarely RPM related). The ESC module or ECM itself might also be a problem here if you have a code 42.
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Old 12-10-2001, 02:20 PM
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