Description: Turbo boost limit exceeded
Power loss light: On
Limp-in mode: None
Wastegate solenoid failure - The wastegate solenoid is located in the right, front fender next to one to three other solenoids. See the Understanding Solenoids page.
Bad connection or wiring - Check the wiring and connections between the logic modle (or SMEC) and the wastegate solenoid. Clean and regrease any corroded connectors with dielectric grease and repair any shorts. This condition may be accompanied by a code 36.
Wastegate actuator spring failure - Try to slide the wastegate to wastegate actuator push rod into the actuator. It should not move. Try to pull it out. If it pulls out with little effort (even if it springs back in), replace the actuator.
Jammed wastegate - Disconnect the wastegate actuator pushrod
and swing the wastegate arm on top of the turbo. It should have about
a 50 degree swing. Make sure the lever and push rod are clear of
any obsticles that may cause them to jam (the heat shield below the fuel
rail is a major culprit).
Following years are probably the same as 1987, but I don't have any hard data to back that up. Some have said that 4.74V was the max for Turbo I engines of later years. Some information indicates that the Turbo II with an automatic had a cut-off of 4.96V, but I don't know of any Turbo II vehicle that had an automatic transmission.
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This page is maintained by Russell W. Knize and was last updated 08/28/98. Comments? Questions? Send email.
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