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Home >> Ford >> 1981 >> Cutaway 4.9L Eng VIN E >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> MCU Engine Control System >> Diagnosis & Testing >> Non-Code Tests >> Closed or Light Throttle Drive Complaint
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Closed or Light Throttle Drive Complaint

Check resistance between Self-Test output socket and ground. If continuity is found, repair short to ground.

SERVICE CODES & SUB-ROUTINE TESTS

6-Cylinder Test Code
1 Functional Test Not Operating None
2 No Start Test System OK No Start 11
3 Running Test Not Initiated 33
4 Fuel Always Lean 41
5 Fuel Always Rich 42
6 Thermactor System 44
7 Thermactor Air Diverter 45
8 Thermactor Air By-Pass 46
9 Low Temperature Vacuum Switch 51
10 Vacuum Switch 52, 53, 56, 62, 63 & 66
11 Low Temperature Switch 51
12 Canister Purge None
13 Spark Solenoid None
14 Tachometer Lead None