Bad connection or wiring - Check the wiring and connections between the logic module and the motor. Clean and regrease any corroded connectors with dielectric grease and repair any shorts.
Shorted or frozen AIS motor - The AIS motor is located near the
TPS. For 1987 or earlier Turbo I engines, remove the bolt and slide
the motor out (you may have to wiggle and twist it). Remove the clamp
and carefully pull out the motor. Be sure and observe how it goes
together, especially the orienation of the rotatiing valve inside.
Hook the motor to a 12V supply to see if it runs. If it doesn't,
replace the AIS. Clean all the gears and shafts throughly and reassemble
the gear and valve assembly. Spray all the gears and parts with TriFlo
or a similar silicone spray lubricant (don't use WD40 because it evaporates)
and insert the motor. If the engine seems to race wildly after assembly
(give it some time to get control), you probably installed the internal,
rotating valve backwards.
- Target idle speed not reached after a number of attempts
|Return to the Fault Codes Page|
This page is maintained by Russell W. Knize and was last updated 08/28/98. Comments? Questions? Send email.
Copyright © 1996-2003 Russ W. Knize