First here is the low I own a stock '90 shadow es , mods to this is a '94 plymouth sundance motor, Mod 1 the egr selonoid was relocated from the fender well('90) to the seloniod on the egr itself(94), Mod 2 changed the '94 tps back to the 90's, so I wouldn't have to splice any connector wires. Mod 3 Power steering pump remained for the year '90, but eh '94 brackets had to be removed to install the '90's brackets.

Now based on some technical data i researched, the 90's motor used only 14-15 psi fuel pressure, however my '94 motor uses 37 psi fuel pressure. This is baffeling since I never changed the fuel pump, and the motor runs perfect throughout the entire tack, except...

The care has recently developed a stalling problem, but only at idle and only when the car has been sitting luke wam/ cold, this problem has progressed to doing when in gear at lights or generally when stopped.

I don't know where to start looking to trace this problem, or even if it is a common thing.. I would greatly appreciate any info even shots in the dark would be helpful..


mark

 

All fuel injected engines will have some sort of Idle Air Control or Motor. They open up a little to prevent stalling on deceleration and control idle speed. Other possibilty might be a bad Vehicle Speed/Distance Sensor or a bad Coolant Temperature Sensor. You might also try running a can of SeaFoam through the gas tank to help clean out the injectors and carbon. NAPA or CarQuest will have it. www.seafoamsales.com