Hey guys
in an earlier posting I described a rough idel prob with my 95 blazer I went through with a full tuneup EGR cleaning IAC cleaning vaccum lines replaced, the last fuel pressure check was fine.
my symptoms have progressed to as follows, At low speed accelleration the vehicle is cutting out
if I step into the throttle it accels fine and at highway speeds it's fine symptoms accure only at light throttle increases before I pull the plenum to check for leaks any idea what the problem might be Thanks in advance. by the way no codes are detected.

 

 

My father has been working on GM vehicles for approx 40 years we hooked up to the Tech 2 a drove around He said the problem is def not fuel The truck idels fine. Under load it is cutting out pretty bad he says it's loosing ignition somewhere says that the TPS looked to be functioning correctly but slows everything down on the display so it is possible The TPS is bad we tested the coil, and I changed the Crank sensor, symptoms still exist I will try replacing the TPS tomorrow and see what happens. Would the TPS malfunctioning set of DTC?

 

My TPS went on me and it never set off a DTC.....once I replaced it all symptoms were corrected

 

what were you symptoms

 

stalling out... irregular idle and acceleration, unless I mashed on the throttle. It happened the worst when the engine was cold but once it warmed up it wasn't as noticeable. Same as you. It was a 5 min fix... surprised the crap out of me when that is all that it was.

 

if i may sound like a noob for a moment but wtf. what is the TPS and the DTC. and it the tps is what is making my truck funny at a start that is slow how to fix it?

 

I will replace my TPS= throttle position sensor, DTC= diagnostic trouble code WTF!! and report back Thanks Blazin NC

 

problem solved, Trying to post a summary but Problem with posting

 

turns out that after replacing my TPS truck still ran like crap, I replaced the connector wire for the TPS and now she runs great. Thanks to all