Boost Gauge Broken

[gstrb91]

I have a 91 Gst and the stock boost gauge doesnt work, i bought the car with it not working then i got a new turbo and it still doesnt work what do u think could be the problem. the needle sit all the way down doesnt even go up to 0. any help would help

 

[ddavisaf]

Get a aftermarket gauge...

 

[oldman]

Get a aftermarket gauge...

Yes, boost gauge should always be the first mod especially before a turbo upgrade. Even if the stock gauge is working, it still doesn't work because it doesn't measure the real pressure, instead it guesstimate according to sensor inputs to the ecu.

 

[ddavisaf]

But to fix your problem, remove the instrument cluster and plug it back in.

 

[steve]

Also double check to make sure nobody stuck a NT ECU in the car.

Steve

 

[gstrb91]

i have a aftermarket gauge just wanted 2 fix the stock one, removed the cluster and put it back made no difference, not sure about the ecu, how can i check

 

[steve]

Take it out of the center console. Check the number on the case against my ECU list and even if it shows as a turbo ECU open the case and look for the knock board in the upper right corner to make sure nobody changed the board. The 4 digit number on the white connector should match the last 4 digits of the E2T number on the case if that board came in that case.

Steve

 

[gstrb91]

ok ill try that then update later

 

[gstrb91]

its a turbo ecu so now what can i try?

 

[FSTRDNU]

, you guys crack me up, your mas air, is not plugged in, or is not working, so plug it in, or get a new 1, thats your problem, , a NT ecu, cmon now

 

[steve]

If he's throwing codes I'd agree it's the MAF.
I've seen stranger things than used turbo car with a NT ECU in it, so keep on laughing.

Steve