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Code in A-5 connector 850 1994

I had been getting code in 1-5-4 in the A2 port. After an EGR system cleaning and getting rid of the crud in the valve, the engine runs smoother now, but I'm getting a 1-5-4 in the A5 port. What is the A5 port for anyhow?

Steve
1994 850 N/A, 176K








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Code in A-5 connector 850 1994

A-5 is for the TCU. There is no 1-5-4. After 1-1-1 comes 2-4-2 and there is no n-5-4.

I checked all of the slots in A and B and there only 1-5-4 in A-2 and A-6, both for the same reason.

Klaus
--
Volvoless. Its been 90 days. BUT I am getting a 1966 122 soon.







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