OG FOX Build Thread

[downtime!]

Dale, if the stock tach is getting buggy, are any of the other gauges acting funny too? If so, the IVR is probably the culprit. I also had an issue where the tach quit working but everything else was fine, turned out to be the lead wire (seems like it was green) that feeds the tach from the ignition circuit under the hood. Replaced that wire and it worked fine after that.

[STROKD]

Originally Posted by downtime! Dale, if the stock tach is getting buggy, are any of the other gauges acting funny too? If so, the IVR is probably the culprit. I also had an issue where the tach quit working but everything else was fine, turned out to be the lead wire (seems like it was green) that feeds the tach from the ignition circuit under the hood. Replaced that wire and it worked fine after that.

yes this lead wire is the one that needs to go directly to the output on the MSD to have a REAL accurate stock tach.

[blownaltered]

Originally Posted by STROKD yes this lead wire is the one that needs to go directly to the output on the MSD to have a REAL accurate stock tach.

I will be trying this once I get my car back.