Help with data stream from handheld computer..
#1
Help with data stream from handheld computer..
I am having some issue getting the P1345 code to go away and I need some help understanding the information provided in the data stream from my handheld computer scanner.
Under the timing for cylinder #1, it says 19°. Does that mean it's 19 degrees off?
Thanks.
Under the timing for cylinder #1, it says 19°. Does that mean it's 19 degrees off?
Thanks.
#2
19 degrees is the ignition timing advance in relation to TDC #1 on compression. The spark plug fires 19 degrees before TDC #1.
Prior to performing a CASE relearn (aka. crankshaft variation learn procedure), did you set the CMP retard to zero? This is done by clamping down the distributor just enough so that you can still turn it within the slop it has in the LIM. With the engine running, monitor CMP Retard on your scan tool. Turn the distributor until the CMP retard reads zero. Then perform the CASE relearn.
Here's the trouble code listing:
P1345 - Crankshaft Position [CKP] Camshaft Position [CMP] Correlation
Prior to performing a CASE relearn (aka. crankshaft variation learn procedure), did you set the CMP retard to zero? This is done by clamping down the distributor just enough so that you can still turn it within the slop it has in the LIM. With the engine running, monitor CMP Retard on your scan tool. Turn the distributor until the CMP retard reads zero. Then perform the CASE relearn.
Here's the trouble code listing:
P1345 - Crankshaft Position [CKP] Camshaft Position [CMP] Correlation
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Chevy33
2nd Generation S-series (1995-2005) Tech
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07-04-2011 04:20 PM