Engine Controls - Poor Performance/Limp Home Mode/DTC's

Date: December 21, 2007

Order No.: T-B-15.18/65

Supersedes:

Group: 15

SUBJECT:
Model 164.177
Model 251.177

Equipped with Engine 156, Up to Engine End Number 60 018913

Poor Engine Performance/Engine in Limp-Home Mode/Stored ME Fault Codes

If you receive customer reports in the above model vehicles regarding poor vehicle performance, engine in limp-home mode or fault codes stored in the ME-SFI control unit (N3/10), this may be caused by a temporary transition resistance in the Z sleeves area To resolve, install an optimized throttle valve wiring harness as per the following,

1. Remove resonance wiring harness. Refer to testing I repair work in WIS Group 09.20

2. Remove lower section of intake manifold.

3. Replace throttle valve wiring harness. Refer to testing/repair work in WIS Group 07.61.

4. Install in reverse order.





Note:
Modified tightening pattern (Figure 1)/modified torque for intake manifold mounting bolts.

^ Stage 1 to 8 Nm

^ Stage 2 to 10 Nm

^ Stage 3 at 90° angle

The throttle valve stop must always be taught in again after the repair.





Fault Code Table





Parts Information

Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on December 21, 2007. Please refer to Netstar --> Star TekInfo --> Star Time for the most current labor time allowance.





In Case of Warranty, use the table.