15
Jul

trying to find out what the codes 12,21,and 32 are.


Answer:
1995 is OBDI and the codes are

12 battery disconnected/ memory cleared last 55 starts / begin of diagnostic sequence

21 O2 shows no activity

32 EGR solenoid circuit shows open/ short circuit

http://www.extreme-check-engine-light-co…


Answer:
You have an OBD 1 system, the codes are as follows:

12 Battery or personal recently disconnected

21 Oxygen sensor signal doesn't change (stays at 4.3-4.5V)

32 EGR gases not working (1988) - check vacuum, valve

This is assuming a fuel injected motor.

Cheers

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