New member. Hey guys. Interested in getting some info

[Conwaycustomz]

Hey members. Looking forward
to getting some info. Having some issues with my truck

[dave w]

Please share some details about the issues your having. Maybe other members have had the same or similar issues with possible solutions to share. It's a good idea to start a new thread with the issue or issues your having.

dave w

[Conwaycustomz]

Please share some details about the issues your having. Maybe other members have had the same or similar issues with possible solutions to share. It's a good idea to start a new thread with the issue or issues your having.

dave w

So. I have a 94 Sierra. Which we replace the engine in last year. Worked great all last year with no probs. So now the last 3 months been having issues with idle and throttle.
When driving at cruising speed(80-90k) with RPMs at 1100-1500 the throttle response is gone. Almost like it shuts off. Dead. Then add more throttle and it pulls out of it.
things that we have done
new fuel pump, distributor, new injectors in the throttle body, new O2 in my header, throttle position sensor, idle air sensor, coolant temp sensor, new GM computer, plugs, egr, timing chain.
when in traffic, and come up to a stop the rpms drop down to 200-300 first then come up to 500-600 ish and also when running cold has a very rough idle

[dave w]

Possibly a TunerPro RT data log will provide information on what is happening? The data log will record lots of information, including Spark Advance, Engine RPM, Engine Vacuum, Throttle Position, O2 Sensor, and many other types of engine information.

dave w