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Home >> Plymouth >> 1985 >> Horizon Base, 1.6 A >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 1.6 & 2.2L Feedback Carburetor System >> Testing >> Test 17 - Checking Computer Controlled Components >> Checking Procedure
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Checking Procedure

Connect diagnostic readout box to the engine harness connector. Put the system in the ATM test mode. Press and hold the ATM button until test codes appear as follows: 1.6L and 2.2L models with oxygen feedback system, test code 92. 2.2L models without the oxygen feedback and with man. trans., test code 92. 2.2L models without the oxygen feedback system and with auto. trans., test code 93.

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