Hi, Phil!

I swear I had put a reply up the other day...

Thank you for your reply! It inspired me to actually go and look at it and the run/die run/die pattern. Your kind of long-form reply really gives me something to think about and I went and took a look. It's the beginning of a long week at work that promises to be rough, so I'm going to keep it pretty short.

An LED probe in the injectors showed power and pulses both with the self-test OBD function and with the cranking all the way until it sputtered and died.

Cold-Start Injector, Injectors, RSR, and IAC all work on the self-test mode. The RSR itself looks good and the fan relay is a little ugly.

The TPS registers that I turned the throttle and the CPS registers that I cranked the engine.

The interesting thing... it runs on starting fluid although it doesn't run for quite as long as I would expect - I am stingy with the starting fluid.

One thing that I think is quite odd - the fuel pump under the car *sounds* different. Like a different pitch and not making the burbling noises it has in the past as air bubbles move through the line. I have to turn the key on and off several times to avoid a long crank. It was normal for a while for it to go weeee... weeee.... weeneeewamam ... weeedbebdebe.... weebdbzzbz... weebdbdbd... weeeeeee (but at a different pitch).


Now I'm wondering if there's a chance this is a progression of what's been going on this whole time with the fuel sender being a bit wonky.

I've been meaning I need to pull the fuel sender but it's been too darn cold and I am smart enough not to run my diesel construction heater with the gas tank open...


What do you all think?