So I bought this new truck...

[guava]

I couldn't help myself. I was at this auction and was totally unsupervised. I've been dreaming of a conversion project and choking a little at the prices of engines. Then this 93 4x4 2500 LB with 170K miles on it and no one was bidding. Some guy opens with a thousand and I thought there is no way its going to sell that low. So I bid 1100. I'd looked at it and it had a lot of newer parts as attrition had taken its toll on some.

Long story short, I bought an engine for a swap project for 1100 bucks. It happens to come in a pretty nice 4wd for its age. I'm going to have to wear out some of the dodge parts prior to doing the swap. So on to my question.

When the thing is warm, it doesn't want to start. Acts like its getting no fuel. I'm looking the problem over and I found this wire connected to the bottom of the pump that feeds the injector lines. It appears to be a mechanical throttle type linkage and the wire leads up through the firewall to near the go pedal. So I thought a boeing engineer had obviously owned this truck. I pulled the wire and held it while starting...it started right up....

SO what the hell does it do?

Surely more to follow as I find these goof ball things.