Dodge Repair: starts and stalls, no power, spark plug wires, vacuum leak


Question
ply, reliant; 88, 2.5 efi
Sorry to bother you again. You gave me some advice around ten days ago. I had a racing idle and a code 'short in asi circuit'. thanks for the advice.  Eventually I did figure how to check voltage on asi circuit and went all the way to the computer module. Everything seemed normal. Took the egr valve off and lubed it and could hear the diaphram working. Eventually went to a mechanic and had him use a scanner. He got the same reading I got about a short in the asi circuit. He couldn't find the problem. He thought there might be a short in a wiring harness and suggested a junk yard. So I went to the junk yard and got a rebuilt smec  that was on the shelf. Could not find the wire harness to match my car. Put the smec in and that apx 2500 idle is gone. I am not getting any fault codes but now the car stalls out after a few seconds. I installed a new intake manifold/tb gasket. That didn't do any good. Replaced rotor, no help. Tried loosening the distributor and moving it to advance or retard spark, no help. Idle screw no help. Looked down in throttle body while running until it stalled. Looks like it is getting plenty of gas --maybe too much, I see little air bubles instead of a fine cone spray it says I should see.  According to my Hanes trouble shooting section, the lack of power--no passing gear--and stalling out right after starting are from the same causes. Either in the tb or the electrical system. My Hanes is lame on rebuilding a fuel injector. I braved it cause the car isn't running anyway--I took off the regulator and cleaned it up and checked the gaskets. Took the rubber cap off the injector.  No help. I am thinking about going to the junk yard and getting a  tb for it and also whatever other parts I can like a complete distributor, coil, spark plug wires. Go back to changing parts because I don't know what else to try. I don't see or hear vacuum leak. I can't find a bad or loose wire. The distributor cap, spark plug wires, and coil look  ok. The spark itself looks good. I had the timing belt replaced 1 year ago. I'll try any suggestion. BTW when I checked the ohms from the asi to the smec I got 52.7 across 17,18 and very close to that across 19,20 (not the pins of the smec of course since it was unplugged, but to the females of the plug). Is that good? Thanks for the advice thus far.  

Answer
Jim,

When you go back to the junk yard check and see if you can get a map sensor,  Also check the vacume line that goes from the map sensor along the back of the valve cover to the throtle body.  Also you may want to check on a distribtor pick up plate.

Good luck,

Steve