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Po1345 Code


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#1 briandover

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Posted 28 December 2010 - 10:13 AM

Im getting a 1345 code on my 98 gmc 2500 with a 5.7? So how can I fix it? it idles fine but sometimes going down the road it spits and pops and has a stall to it. So has anyone ran across this before if you have let me know asap Thanks
<div align="center"><img src="http://c4.ac-images....0c91dee157.jpg" border="0" class="linked-sig-image" /></div><br />04 Tahoe Z71 LT 4X4/AWD with a 5.3 Flex Fuel with 17&quot; Denali wheels a CAI and Superchips programmer the 5.3 is gone it has a GM Performance Parts E-Rod Crate Engine 6.2 with 430hp and 424lb-ft of torque with Premium Ride Suspension,3.73 gear's,XM,On-Star,BOSE speaker system,Stabilitrak,Sunroof, Front and Rear heat and air and 3 row's Leather Seat's. 03 Blazer LT W 4.3 Comp cam 1.7 rockers CAI 3.73 gears with G80 locker programmer. As soon i get done rebuilding my old 5.3 im building it to the 5.3HO specs kick out 332 horsepower and 352 lb.-ft before the manacharger super charger with a fast intake manifold for the LS trucks with a 90mm TB then the blazer should be a little faster

#2 blown 74

blown 74

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Posted 28 December 2010 - 07:03 PM

Im getting a 1345 code on my 98 gmc 2500 with a 5.7? So how can I fix it? it idles fine but sometimes going down the road it spits and pops and has a stall to it. So has anyone ran across this before if you have let me know asap Thanks



My book said camshaft to crankshaft position correlation fault.Sounds to me like one of the sensors is getting bad or a bad wire and at just the rite time one of them looses a signal.Check the connections and wires for bad spots.

#3 briandover

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Posted 29 December 2010 - 08:28 AM

Im getting a 1345 code on my 98 gmc 2500 with a 5.7? So how can I fix it? it idles fine but sometimes going down the road it spits and pops and has a stall to it. So has anyone ran across this before if you have let me know asap Thanks



My book said camshaft to crankshaft position correlation fault.Sounds to me like one of the sensors is getting bad or a bad wire and at just the rite time one of them looses a signal.Check the connections and wires for bad spots.


Thanks I will check it someone around home was telling me someone didn't put the dis back in wrong. This sounds stupid but I can turn the dis clockwise to get the check engine light off. But then going down the road the tq converter want lock in. At 60 mph its running 2300 and it should be running at 1900. So does anyone know what is up with it. The trans is a 4L80E
<div align="center"><img src="http://c4.ac-images....0c91dee157.jpg" border="0" class="linked-sig-image" /></div><br />04 Tahoe Z71 LT 4X4/AWD with a 5.3 Flex Fuel with 17&quot; Denali wheels a CAI and Superchips programmer the 5.3 is gone it has a GM Performance Parts E-Rod Crate Engine 6.2 with 430hp and 424lb-ft of torque with Premium Ride Suspension,3.73 gear's,XM,On-Star,BOSE speaker system,Stabilitrak,Sunroof, Front and Rear heat and air and 3 row's Leather Seat's. 03 Blazer LT W 4.3 Comp cam 1.7 rockers CAI 3.73 gears with G80 locker programmer. As soon i get done rebuilding my old 5.3 im building it to the 5.3HO specs kick out 332 horsepower and 352 lb.-ft before the manacharger super charger with a fast intake manifold for the LS trucks with a 90mm TB then the blazer should be a little faster

#4 233monte

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Posted 29 December 2010 - 11:14 PM

You need a scanner to check timing On these engines. That should point you in a direction. The CMP pid should be no more than + or - 2 degrees or it will set the 1345 code
09 2500HD 6.0, Tree shaped air freshner

#5 twavor

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Posted 31 December 2010 - 03:17 PM

Did you have the distributor out or have you moved the distributor just prior to this code popping up? The distributor has to be in just right or you will get that code.

Travis
Southern IA farmer and ASE certified master auto technician
'00 Silverado ecsb 4x4, 5.3 and riding on 285's...newest vehicle I've ever owned, loads of fun, and I've got cupholders!
'75 GMC 3/4t 4x4--355, 4spd, 205 t-case, 14 bolt full floater.
Built to haul a load--10+leaves in the rear, 1000lb overload shocks, 5 leaves in the front. Bulletproof and built like a brick sh*thouse!




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