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1991 Ford Mustang LX 2.3L MIL Lamp on, tach jumping up
Posted to Ford Driveability on 3/6/2001

The car came in with the complaint that the tach had been "jumping up" for the past few days, then the CEL came on. We found no on demand codes and a 223 code in keep alive memory. When we ran KOER we got 998 and 223, then the test self-aborted. We followed th...

  Related Documents & Media  1991 Ford Mustang LX

 
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car Vehicle Data

1991 Ford Mustang LX

VIN 1FACP41M0M
Engine2.3 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsCanadian
SymptomsMIL Lamp on, Tach Jumping Up
OccursAlways

Trouble Codes

223DPI problem
998FMEM problem
Message Closed

car Vehicle Data

1991 Ford Mustang LX

VIN 1FACP41M0M
Engine2.3 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsCanadian
SymptomsMIL Lamp on, Tach Jumping Up
OccursAlways

Trouble Codes

223DPI problem
998FMEM problem