archemitis Posted April 21, 2004 Share Posted April 21, 2004 the brown car in my sig. early mpfi, ea82. used to work good, started runing lean, now it will run fine, till the engine starts to heat up. which is about 1.5 minutes. swapped the afm, does the same thing. kinda idles, and when i throttle it, it sputters, and shoots small backfires out the intake, small enough to not be loud, but strong enough to slam the afm flapper shut, for a split second. im talkin bad enough, that i cant even move it from its parking spot. codes arent helping.efi temp sensor maybe? culd i have slipped a tooth on my tight timing belts? doh! i have 4 subarus, and the only one that runs is the one i havent touched. =[ Quote Link to comment Share on other sites More sharing options...
iluvdrt Posted April 21, 2004 Share Posted April 21, 2004 my coolant temp sensor would make my car like that. they are cheap too, so it might be worth checking into. Quote Link to comment Share on other sites More sharing options...
josh long Posted April 21, 2004 Share Posted April 21, 2004 Timing sounds off(belts), I did thid recently on my turbo wagon 11psi boost and no power/wierd backfires. Josh Quote Link to comment Share on other sites More sharing options...
archemitis Posted April 22, 2004 Author Share Posted April 22, 2004 checked the belts last nite, they looked right on. i'll have to see if spfi temp sensors are the same as mpfi tonite. Quote Link to comment Share on other sites More sharing options...
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