surging

Few months ago I installed a mspnp2, along with GT40P heads and intake on my 95gt, idling has always been an issue but the startup creeps to around 3k and hangs there for 4-5 seconds before dropping down, this is only when the car has ran in the last couple hours, cold starts in the morning...

I got this 89 LX Convertible with the 5.0 motor.. wemt to change distrubutor cap but first checked to see how the plug wires went on google.. 137 blah blah was every 5.0 HO motor firing order.. i noticed it was different.. it has tje 154 non HO 302 firing order.. idk why... it looks just like a...

Hello, I have a 89' foxbody and I recently took apart the upper manifold and cleaned all ports, put it back together and it idled in the 1,500s without coming down for 30 seconds. I went ahead put a new IAC and TPS, and adjusted the idle down to 800 RPMs. The car didn't run good after any of...

I've been having surging issues for a couple of months now. I replaced my IAC and checked for vacume leaks and tested my TPS. The surge is only slight. Maybe 25-50 rpm when its warm and on a real cold start it surges quite a bit for about a minute before smoothing out. I've done a reset and I've...

Hello! I have a 1995 mustang v6 and it is having surging problems. You can be driving a certain speed (even set on cruise) the cars speed will stay the same but the cars rpms will rev out going up and down continuously. When it finally release its pushes or jumps the car forward. No check engine...

Alright guys coming back to my roots here at Stanget hoping to solve this one. Recently swapped a PI 2v 4.6 with a Stroker kit into my 96 gt. Along the way I deleted my EGR because with Longtubes it's darn near impossible to put all that crap back on. Problem is I've had a little bit of a miss...

88 mustang lx 2.3l Ok so found out I had too big of injectors 18lb/hr also thought they were causing my idle problem, loading up with fuel "rich". I ordered and installed new 15lb/hr and it made the problem worst, now car dies durring idol surging. I have been fighting this battle for over a...