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Old 01-19-2020, 04:42 AM   #1
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Default 1986.5 Nissan D21 Trouble Codes

I finally had time to check for trouble codes on the truck, and I got three. It's a Z24i engine.

Code 11: Crank Angle Sensor/Camshaft Position Sensor.

Code 31: Engine control module (ECM).- A/C, light,fan and PS switch

Code 32: EGR sensor.- starter switch

I've done some research and just want to make sure that these codes are correct. Can anyone confirm??

Does anyone know what the causes are for these codes? Can this cause the truck to idle rough and surge when idling??

Last edited by Rebug; 01-19-2020 at 08:00 AM.
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Old 01-31-2020, 04:57 PM   #2
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According to the 86.5 FSM code 31 does not exist for the Z24i trucks only the V6. So that's interesting. Are you positive that you are doing the self diagnosis correctly?

FSM also states that codes 23 and 24 are tripped during self diagnosis even if they check out ok. Were you getting those as well? If 11 and 32 are indeed good codes, then id suspect the code 11 is causing your issues-crank angle sensor inside of the distributor.

Just taking a wild guess but maybe you are reading the codes backward. 11, and maybe 13 and 23 could be the real codes? The first flashes from the red LED indicate tens, while the green following indicates ones. one red and three greens, 13.

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Old 01-31-2020, 09:27 PM   #3
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You will get some codes until you trigger the signals like the neutral safety switch. Might need to make an electric load for PS switch or similar.



The Chilton's manual has a good guide on pulling codes.





Crank angle is the wave plate in the distributor.
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Old 02-01-2020, 02:41 AM   #4
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The crank angle code is normal for the manual transmission trucks. If the wave plate was bad, the coil ground would never break for the coil to fire the plugs.

Been there and done that and replaced a distributor for the same stupid code that was still there with the new distributor lol
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Old 02-01-2020, 07:55 PM   #5
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Will you be able to share that fsm with me? I'll check again to make sure that I didn't screw it up.
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Old 02-02-2020, 03:15 AM   #6
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Sifi and JP2Code have copies of the the FSM.
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