EEC Processor - Engine Surge at Wide Open Throttle
85ford22Article No. 85-22-18
SURGE AT WIDE-OPEN THROTTLE - 2ND OR 3RD GEAR - 4,000-5,000 RPM - MANUAL TRANSMISSION ONLY
MERKUR 1985 XR4Ti
CALIBRATION: 5-05R-R10
WARNING: This modification is authorized only for the listed engines. Performing this modification on other engine calibrations is unauthorized and could create liability under applicable federal or local laws.
The 1985 Merkur XR4Ti, equipped with a manual transmission, may experience a surge at wide-open throttle in 2nd or 3rd gear, in the 4,000-5,000 rpm range. If this condition is present, quick test the EEC IV system using Rotunda Star Tester 007-00017 or equivalent, to verify the system is operating properly. If no fault codes are present (other than codes 26 and 67 per TSB 85-4-29), replace the EEC processor according to the procedure listed below.
Figure 18 - Sound Deadening Panel:
1 . Disconnect the battery ground cable.
2. Remove the right hand sound deadening panel attached to the bottom of the instrument panel (see Figure 18).
Figure 19 - ECA Processor Removal:
3. With the panel removed, pull the ECA processor down out of the mounting bracket (see Figure 19).
4. Loosen the screw in the center of the wiring connector and separate the connector from the ECA processor.
5. Replace ECA processor E5ZZ-12A650-FC with E5ZZ-12A650-FD.
6. Reinstall the ECA processor into the mounting bracket and attach the sound deadening panel to the bottom of the instrument panel.
Figure 20 - Authorized Modifications Decal:
7. Prepare an authorized modifications decal (form FPS-8262) showing a new processor has been installed (see Figure 20) and install it on the front engine cover in area of existing calibration code decal (attach vinyl protecting overlay).
8. Run VIP test to verify system is operating properly.
NOTE: Service Code 67 during key-on, engineoff self test is normal - same as found with the 1985 calibration. However, Service Code 26 during engine running self test should not be present as it was with the 1985 calibration.
PART NUMBER PART NAME CLASS
E577-12A650-FD Processor R
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP12650H85
TIME: 0.9 Hr. DLR. CODING: Basic Part No. 12A650 - Code: M3