DME M1.7, M70 Applications (88 Pin Control Module)

Introduced in the 1991 model year; this system improved the 12 cylinder engine control system with a smaller; faster control module.

QUICK VISUAL IDENTIFIERS:

88 Pin CM (M1.7):

Hot Wire Air Mass Sensor:

Distributor Ignition:

SYSTEM FEATURES:
- Power Supply Control (ECM Main Relay)
- Semi-Sequential Fuel Injection
- Fuel Pump Relay Control
- Gold Start Enrichment control
- O2 Sensor Heater Relay Control
- Ignition Timing Control
- Purge Valve Control
- Output of Ti, TD and TR signals
- AC compressor cutout control
- EML/ASC Compatible
- Air Mass Sensor hot wire cleaning
- Air Pump Relay Control (M5 only!)
- Substitute operating values employed if specific input signals become impaired.
- Fault monitoring with defect memory
- DIS/MoDiC Communication for Diagnosis and Variant Coding

ADAPTIVE SYSTEM FEATURES:
Adaptive ms injection time influenced by O2 Sensor Signal. (stored in memory) Adaptive Idle Speed Control