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Engine misses....
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<blockquote data-quote="USMC53CHIEF" data-source="post: 10449182" data-attributes="member: 113906"><p>155,000 miles... strong engine.. most people are shocked when they see it run/perform and then i tell them that. Compression checked good, average of 156.75 psi with the high 1 being 170 psi and the low 1 at 150psi..I had 3 or 4 cylinders at 158psi. there was a questionable plug, which i replaced, it wasn't tight either. i use the Bosch platinum 2's that have a dual tip head, so no gap needed. coil packs are giving spark for all cylinders... after all this, still ran like crap, worse actually. I did notice that the engine did not get any worse/ had no reaction to me disconnecting the maf sensor.. and when i plugged it back in the motor actually bogged down a bit... sometimes idling at 300 rpm. it reacted when i pulled individual fuel injector wires off too so i don't think its them. I'm pretty convinced its electrical, my check engine light is on but the stores are closed so i cant check it, plus i have it on all the time for secondary air injection (smog) and cat-less x pipe. like i said, ran fine all weekend through Monday night then Tues. morning it was really cold and i went to start it and run the heat, i was inside then heard it bog down, hasn't recovered since.</p></blockquote><p></p>
[QUOTE="USMC53CHIEF, post: 10449182, member: 113906"] 155,000 miles... strong engine.. most people are shocked when they see it run/perform and then i tell them that. Compression checked good, average of 156.75 psi with the high 1 being 170 psi and the low 1 at 150psi..I had 3 or 4 cylinders at 158psi. there was a questionable plug, which i replaced, it wasn't tight either. i use the Bosch platinum 2's that have a dual tip head, so no gap needed. coil packs are giving spark for all cylinders... after all this, still ran like crap, worse actually. I did notice that the engine did not get any worse/ had no reaction to me disconnecting the maf sensor.. and when i plugged it back in the motor actually bogged down a bit... sometimes idling at 300 rpm. it reacted when i pulled individual fuel injector wires off too so i don't think its them. I'm pretty convinced its electrical, my check engine light is on but the stores are closed so i cant check it, plus i have it on all the time for secondary air injection (smog) and cat-less x pipe. like i said, ran fine all weekend through Monday night then Tues. morning it was really cold and i went to start it and run the heat, i was inside then heard it bog down, hasn't recovered since. [/QUOTE]
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