Please help - fresh rebuilt 502 mpi is cutting out under load above 3000rpms
#12
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#13
I once had a 'typo' inputing parameters into the timing table and at one break point (MAP/RPM) inadvertently had like 0 deg timing. Motor fell on its face very similar to this one. Low drive oil will cause this too but I'm not hearing an alarm.
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#15
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Here's a short ScannerPro video I made running off the hose. The clanking noise you hear is from my Corsa silent choice linkages. I need to send back to Corsa to adjust.
Appreciate all your help.
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#17
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I was going to suggest distributor module and ground but looks like you`re on the right track there .
I got all my distributor stuff from Rock Auto.
look up 19995 K1500 suburban/truck
GM W04 dist is $70 instead of $500 from Sierra
Module is $20
and caps are cheap too ..its all the same stuff.
Caps, you want the Brass terminals
https://www.rockauto.com/en/catalog/...stributor,7108
I got all my distributor stuff from Rock Auto.
look up 19995 K1500 suburban/truck
GM W04 dist is $70 instead of $500 from Sierra
Module is $20
and caps are cheap too ..its all the same stuff.
Caps, you want the Brass terminals
https://www.rockauto.com/en/catalog/...stributor,7108
#18
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I did too,same rpm limit,disconnected 1 knock and boom,red line,next year,rpm limit,no problem,disconnect the other knock sensor,boom,redline again
couple weeks later on a fun run,,horrendous noise from engine.spent the lunch break removing valve cover and re-installing the rocker stud that came out.I know why the knock sensors were tripping.
side mount whipples on mpi manifolds.
quiet down your valve train.
oh,and I reconnected my knock sensors