WHITEZ28*

Just finished putting my ls1 into my 1999 camaro the motor was out of a corvette, it starts right up no problem but sometimes the idle will drop up and down it came up with P1345 while driving down the road the misfire will get bad then just go away it feels like but it has no trouble starting only thing that's seems to be effected would be idle, misfire will driving and the MPG What could be causing this?!?!?

93Rat

iTrader: (3)

https://ls1tech.com/forums/generatio...cs-inside.html

Post #9

WHITEZ28*

What about #9? I looked up the code and found that it says crankshaft position sensor but it starts just fine and the tach works so it couldn't be that right? Could I just need to get the crankshaft position sensor and camshaft position sensor relearned?

big hammer

Did you change the plugs/wires/fuel filter?

WHITEZ28*

It has new plugs and wires I replaced the fuel filter around 7,000 miles before the new motor but it comes up with the P1345 code for a crank sensor but it still starts fine

Old Geezer

iTrader: (3)

Check the end play on the crank..

joecar

+1 crank end play.

2xLS1

iTrader: (25)

P1345 is not a valid code for a 99 Camaro or any Gen 3 vehicle. It is Vortec 305, 350 Crank Sensor Cam sensor correlation code. It sets when the Cam sensor in the distributor is out of correlation with the Crank sensor. Are you sure it is not P1336 Crank sensor variation not learned. I would expect that changing the engine and not performing a CASE Learn.

G Atsma

HUH??? In the WHAT???

sowbelle

OP needs to clarify DTC
Think about it

WHITEZ28*

There is no play in the crank, but I was thinking would i just need to relearn the crank posturing sensor along with the cam shaft positioning sensor have them relearned to the computer?

Compsystems

what was done to the motor recently? Cam change or anything related to that?