running issues had a misfire and got into it and wont run right

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bde269

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(1999 gmc suburban 5.7l vortec) I was driving and all of a sudden I had misfires on cly 1 and cyl 8 took a temp gun to the header to see no fire. pulled the plugs to check spark and there was good spark. so I put in a new spider injector and while in the process the ears on the distributor snapped it was a old type plastic, so I got a new distributor (aluminum body) and found tdc on a compression stroke and put the distributor in . I got the burb running but when the timing is with in +2-/-2 it runs bad and when im +18 degrees or so it runs good any ideas on what im doing wrong and thank you for your time

the codes that come in our
po340 camshaft position sensor a circuit bank 1 or singl sensor

p1345 crankshaft position ckp- camshaft position cmp correlation

the camshaft is new with the new distributor

and I put in a new crankshaft sensor because I hoping that would fix the running issues after I got to 1.5 degrees but no such luck
 

iamdub

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Sounds like the dizzy is a tooth or so off. Also, you're supposed to perform a CKP relearn any time you replace a CKP sensor. Do you still have the original sensor? Did you happen to check the tip for damage?
 

east302

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Did you use a scanner to set the camshaft position sensor offset? The P1345 usually pops up when that it is out of spec (-2 to 2 degrees at around 1100 rpm).

Here are the diagnostics for the P0304...

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f2ae6695f706fcd7f1b26cb70e27128a.jpg


a1a43a0197064bf60c1f614317a8bb5b.jpg


ceb515e188adf2c999f1af054c592a53.jpg



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