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#1
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Does anyone have a spare AFM that is know to be working I could borrow for a few minutes? I brought mine back from getting the belts done last week and after I turned it off in the driveway to clear out the garage, it now won't start.
I am getting fuel + pressure I am getting spark I put in new plugs for good measure I double checked the crank sensors I am getting tach flutter and did the DME relay jumper
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'86 951 [Up for adoption] '07 335i 't-bone' [gone] '08 335i [lapping the beltway] |
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#2
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Does it try and start - run for a second or two and then die? On the throttle body, make sure the throllte position sensor (limit switch) is closed when starting
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#3
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It is trying to start. Sounds like it right on the cusp of starting, but just won't fire. I will double check the TB sensor.
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'86 951 [Up for adoption] '07 335i 't-bone' [gone] '08 335i [lapping the beltway] |
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#4
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Make sure the fuel pressure regulator or damper aren't leaking.
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#5
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It's not leaking. I installed a fuel pressure rail gauge and it is showing good pressure. Looks like I may be getting it towed back to the shop.
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'86 951 [Up for adoption] '07 335i 't-bone' [gone] '08 335i [lapping the beltway] |
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#6
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When you say you are getting fuel, are the plugs wet? If you have pressure and spark it should fire unless the injectors are not opening or the spark is occurring at the wrong time. Did you checked the ref sensors with a scope and check for pulses? Also check/replace the distributor rotor and cap. I have had three go bad that looked to be in good shape and would not let the cars start.
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Steve Potomac PCA Co-CI(retired) 89 944 Turbo Race car 85.5 944 NA son's 2015/2019/2020 944Cup and PCA Nat'l Champ racecar 94 968 1 of 11 Iris blue coupes 92 968 1 of 2 Tahoe Blue Cabriolets 98 993 C2S w/Aerokit II 77 911S Vintage race car project 70 Boss 302 86 Mustang SVO 24 F250 SD Godzilla "Noel spun! Noel spun! Don't do anything stupid, Dad." -the boy on the radio on the last lap of NASA race as the second place car spins behind me in T5 at Summit Point. |
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