M34LNCH

iTrader: (3)

OK here is the deal guys, my car has an aristo swap in it with an extended aristo harness, drove the car for months like that with no issues, all electronics worked fine. I just sort of went crazy with it and did a single turbo, fuel system, intake manifold etc...and installed an AEM in it. The tach was working just fine on the car for a couple of days, and then out of the blue it doesn't work anymore, together with the fuel level gauge, and there has not been any work performed since.

I took cluster off make sure the resistor bridge is still in place, checked all the plugs behind the dash and its fine, but i'm sort of out of ideas on where to check next. Oh also if i plug the AEM to my labtop I can read the tach signal there just not on the dash. BTW all lights and temp gauge work just fine.

Thanks.

sc250tt

did you ground the fuel signal wire on the harness? did you do the tach mod ? if not thats your problem

M34LNCH

iTrader: (3)

AS I stated the tach mod was performend when the swap was originally done and it worked fine then, and fuel sending unit retains the harness intact. THe car had the RPM working perfect with the AEM and everything in place for a couple of days. I cranked it last wednsay and thursday and tit worked just fine, car stayed in the lift then on friday i went to start it and no RPM just like that.

sc250tt

wow thats weird .try switching out clusters .my sc 400 did the same thing when i did the swap but a hard slap on the dash usually fixed it .goodluck tho

craaaazzy

iTrader: (4)

what is this tach mod? and why the need to do it? tia

M34LNCH

iTrader: (3)

search is your friend

craaaazzy

iTrader: (4)

thanks, have done so.