Quote:
Originally Posted by MS Fowler
All good info, and after I get it running, I will do a full tune-up. But it runs very well with gas dumped into the intake, or even just energizing the fuel pump and depressing the air valve for a few seconds---enough fuel get injected to run for a few seconds--but not enough for prolonged running. I am thinking that I will just spring for a set of injectors and pop them in. If it refuses to run even then--then it becomes the parts car. If it runs at all, then it will get that tune-up and all new injector seals and tubes and vacuum lines, and a new inlet air temp sensor.
|
MS:
You have noted earlier that the engine would run for about 20 seconds, then shut off. That is about enough time for the (heated) O2 sensor to come up to operating temperature, and deliver a usable signal. It is also about the time programmed for post-start enrichment. After post-start, and with a good O2 signal, the ECU will drive the mixture in the lean direction. If the last, um, "mechanic" moved the main mixture adjustment in the lean direction, the observed symptoms are quite likely. If you have not already done so, give the mixture screw (in the tower between FD & air meter) a 1/8-1/4 turn CW (after pushing down to engage the screw underneath). That is enough to make a significant change. Keep track of the amount moved.