What is this wire?

[LarryJoe]

Anyone know what this wire is exactly? This is in my 7g galant (6bolt 4g63, 91 dsm ecu). It's from MAF harness. Which plugs into my speed density harness. I'm not sure what it is, but I'm having trouble keeping the car idling and don't know if this is affecting it or not.

 

[m1nd64m3]

I would say that is probably going to cause some weird idle issues. Pop the pin out of the connector and reattach the wire and go from there, but I bet it will fix your problem.

 

[Spoolin92GSX]

Depending on the wire color difference between your Galant and 2G's, that's either your 5v sensor supply OR the "MAF reset signal." Since you're having speed density issues I'd bet it's the 5v supply.

 

[LarryJoe]

I'm not necessarily having speed density issues. Car just won't idle and when I'm giving it low throttle it stumbles and spits all over the place. Can someone give me a run down of how to reconnect this wire into the harness? I'm honestly not even sure which pin it will go into.

 

[bryanwheat]

I'm not necessarily having speed density issues. Car just won't idle and when I'm giving it low throttle it stumbles and spits all over the place. Can someone give me a run down of how to reconnect this wire into the harness? I'm honestly not even sure which pin it will go into.

Un hook the plug, look for the pin that doesn't have a wire attached to it, push the pin out of the plug, solder the wire to the pin and push the pin back into the plug.

 

[m1nd64m3]

I'm not necessarily having speed density issues. Car just won't idle and when I'm giving it low throttle it stumbles and spits all over the place. Can someone give me a run down of how to reconnect this wire into the harness? I'm honestly not even sure which pin it will go into.

That sounds like a speed density issue.

 

[LarryJoe]

Thanks everyone. Ill give it a shot and update with results.

 

[LarryJoe]

Just an update, I reconnected the wire but it didnt help at all.