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1987 Chevrolet Blazer Custom Deluxe 5.7L Stall
Posted to GM Driveability on 2/12/2002 7 Replies

Hi Group

This Blazer dies when I try to set the min air rate below 550 rpm. If I disco the timing check connect it runs fine. No codes CKT 423, the white wire, has a good pattern square wave with HZ @35(stalling point)up 125 or so with rpm. I don't loose fuel...

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car Vehicle Data

1987 Chevrolet Blazer Custom Deluxe

VIN 1GNEV18K2H
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsCA
SymptomsStall
OccursAlways, Idle, in Drive
Message Closed w/FIX

car Vehicle Data

1987 Chevrolet Blazer Custom Deluxe

VIN 1GNEV18K2H
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsCA
SymptomsStall
OccursAlways, Idle, in Drive