That's exactly how I set my distributor. And does that sync the fuel injection as well?

 

That's exactly how I set my distributor. And does that sync the fuel injection as well?

 

That's one way to set fuel sync, yes.

What else would it do? Timing is all set by the ECU based on the crank position sensor, its internal tables, and some math.

RwP

 

im really starting to not like my truck 😐...

 

I have a 1990 Dodge Dakota 3.9L (late 1989 production) that also has idle control issues.It wants to stumble and die on decel and will not always idle without stumbling and stopping. I have replaced the fuel pump, fuel filter, repaired two vacuum lines, TPS, MAP sensor, EGR Valve, Plugs, Wires, Cap & Rotor, ECU (OEM refurbished). I have good fuel pressure (approx 14-15 psi), reasonable compression in each cylinder (within tolerance) and yet this continues to be an issue. Up until all this started the truck would run pretty good. This has NO cam sensor or crank sensor. 251K miles. Found and cleared a code 24 (TPS out of range) without any real change. Any other ideas?

 

I think my issue has something to do with my throttle body, I can spray carb cleaner in it and it'll clear up momentarily.

 

What year is your truck, littleBlue52? And what size motor?

But before I did much else, I'd triple check ALL the vacuum lines, then check the gaskets around the throttle body. Actually, if you're not sure it's been done, I'd replumb ALL the vacuum lines first.

RwP

 

"repaired two vacuum lines" ... you need to replace all the others also.

Fuel pressure should be 14.5PSI on the TBI units; even 14.9 or 14.1 will cause problems.

I'd check the TPS sensor (multimeter, center to one end should vary increasing as the throttle is opened; center to other end should vary DECREASING as throttle is opened.)

RwP

 

its a 1992 5.2 liter

 

Another thing I need to add, talking to a few other people who heard my truck running said its got a bigger cam in it. It does sound lopey