Surf rev counter issue

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08-06-2015, 10:56 PM
distant stalker

Surf rev counter issue

Not sure if anyone has come across this, my surf (1kz) has got an intermittent issue with the rev counter, seems to be worst in cold weather it reads far too low then eventually jumps to where it's meant to. I don't even know how a rev counter on a diesel works to be honest as they don't run the spark system of a petrol, one of you Toyota experts must be able to tell me where to start looking...
It did it last winter too but the ignore it and it will go away worked and it fixed itself, I shod be more proactive this time though....
08-06-2015, 11:21 PM
cambo

It could be a solder joint in the dash cluster that needs to be resoldered, or it could be the first sign that the ECU is about to smoke itself. The RPM signal goes from the injection pump to the ECU then to the gauge.
The 130 Surf's are known for ECU problems, especially if they have got damp.
08-06-2015, 11:28 PM
distant stalker

Hmmm might be trade in time then lol has never got damp while I've owned it, it does jump like a loose wire though so will have a look at that
08-06-2015, 11:30 PM
distant stalker

Just checked price of replacement ecu, no where near as expensive as expected, forgot it was a surf and not the wife's 350z...
09-06-2015, 07:35 AM
longrange308

Can get Ecus fixed, resolder pcb in dash and check wires at pump
Havnt rubbed through insulation
09-06-2015, 09:59 PM
gimp

My speedo doesn't pick up from time to time
09-06-2015, 10:04 PM
longrange308

Quote:

Originally Posted by gimp

My speedo doesn't pick up from time to time

Prity sure your not the only one
09-06-2015, 10:15 PM
Bernie

My old surf had speedo probs too (94 3ltre turbo) had to get replacement
10-06-2015, 10:01 AM
Driverman

Quote:

Originally Posted by distant stalker

Not sure if anyone has come across this, my surf (1kz) has got an intermittent issue with the rev counter, seems to be worst in cold weather it reads far too low then eventually jumps to where it's meant to. I don't even know how a rev counter on a diesel works to be honest as they don't run the spark system of a petrol, one of you Toyota experts must be able to tell me where to start looking...
It did it last winter too but the ignore it and it will go away worked and it fixed itself, I shod be more proactive this time though....

I had a 94 Hiace with similar fault. Was a simple fix. Dry joint in rev counter.