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2001 Oldsmobile Alero GL 2.4L No Start
Posted to GM Driveability on 4/18/2006 2 Replies

car towed in no start, owner replaced fuel filter, has good fuel pressure, good spark, no pulse to injectors. the alternator looks new, customer did not comment on replacement. codes po621,p1632 present. no check engine lite. Had a no start after alt replaceme...

FIX posted 4/19/2006

2 Replies Received (View Replies)

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car Vehicle Data

2001 Oldsmobile Alero GL

VIN 1G3NL12T4I
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsNo Start
OccursAlways

Trouble Codes

P0621Generator L-Terminal Circuit Malfunction
P1632TCM Internal - Test Internal Watchdog Performance