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1956 Chevrolet 4dr wgn 5.7L Poor Idle Quality, Hesitation, Surge
Posted to GM Driveability on 7/26/2007 3 Replies

Computer has been reflashed by a hot rod place in Tx. when I accessed under generic OBD2 it once showed LT1 +24% LT2 +24 % short term shows 0 both banks. Next time I try to access it acts like there's no ignition power to computer Don't have a legit vin so can...

3 Replies Received (View Replies)

 
Message Closed w/Summary

car Vehicle Data

1956 Chevrolet 4dr wgn

VIN 1956CHEVYW
Engine5.7 L / 8 cyl
DeliveryFI / SEFI
EmissionsOBD2
SymptomsPoor Idle Quality, Hesitation, Surge
OccursAlways, Idle
Misc.99 Ls1 Engine

Trouble Codes

P0560PCM Backup Circuit Low Voltage
Message Closed w/Summary

car Vehicle Data

1956 Chevrolet 4dr wgn

VIN 1956CHEVYW
Engine5.7 L / 8 cyl
DeliveryFI / SEFI
EmissionsOBD2
SymptomsPoor Idle Quality, Hesitation, Surge
OccursAlways, Idle
Misc.99 Ls1 Engine

Trouble Codes

P0560PCM Backup Circuit Low Voltage