87 GN Error codes 24 & 31

[dlebel]

Hello All, I just purchased a 1987 GN and I am getting the following error codes 24 & 31.

Is this anything that I should be concerned with?

Thank you in advance!
Dave

 

[salvageV6]

Depends upon the modifications, post up everything you know about the car.

Updated instrumentation? or wastegate control?

 

[TurboBob]

The 21 may be a misadjusted tps,. The 31 is likely an unplugged wastegate solenoid



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[grass doctor]

Malfunction Codes Code Number	Description
12	Normal, no crankshaft pulses when engine not running
13	O2 sensor
14	Coolant temp sensor high
15	Coolant temp sensor low
21	TPS sensor high
22	TPS sensor low
23	Air temp sensor low
24	Vehicle speed sensor
25	Air temp sensor high
31	Wastegate solenoid
32	EGR
33	MAF sensor signal high
34	MAF sensor signal low
41	Cam sensor
42	EST circuit failure (ignition module to ECM)
43	ESC circuit failure (knock sensor module)
44	Oxygen sensor lean
45	Oxygen sensor rich
51	Prom error (chip or socket)
52	Cal-pak error (small chip by prom)
55	ADU error (bad ECM)

 

[salvageV6]

I thought he said 24?

 

[TurboBob]

Yeah, I looked at it cross-eyed.... Code 24 is vss. No big deal. Can happen from braketorquing or it could be a bad vss.


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[grass doctor]

I guess I should stop brake torquing then