running rich

First time poster here looking for some advice where to look next. I've tried a bunch of things but no luck maybe someone here has a good technique to try. So run down on car. 94 cobra, afr 185cc heads, f303 cam set straight up, edelbrock rpm2 intake with spacer for clearence reasons, has a 70mm...

So I recently converted my 1989 4 cyl to a 5.0 using all the correct engine harnesses from a 1989 car. The ECU I'm running is the A3M out of a 93 car. So the car starts right up no problem. After let's say 60 seconds of idling the car from what I think goes in to closed loop and once it does it...

I have a 1995 mustang gt automatic with a built engine, it has a 331 stroker kit, stage 2 trick flow top end kit that comes with the trick flow stage 2 camshaft and full exhaust with x pipe high flow mufflers and around 10.5/1 compression. I just bought this car and the past owner gave me 2 SCT...

Having a slight problem, new to mustangs and just got a 93 foxbody (5 speed) a few days ago. It Sat for a while, not sure how long. Anyway, it runs really rough. During idle it isn’t too terrible, sometimes it might vibrate. But the real problem is when I try to drive it. The car has no power...

Hello all! I am having a huge headache with my car as of lately. So here’s the story: Ever since the winter, the car has been sputtering, misfiring, and just not running like the 5.0 I know. Ran codes: KOEO: 11 KOER: 12, 92 I have done SO MUCH testing, and replaced a BUNCH of parts that...

I’ve been getting smoke out of the exhaust and what I think is a burning smell when coming to a complete stop. This only happens usually after going down a hill and low RPMs and a little bit of engine breaking is involved. It’s an auto car so when I say engine breaking I mean like 1,300 rpm or...

Hello, I am new to posting on forums and this is the first time I ever made an account to post a Thread, so sorry if I am doing something wrong. I tried searching for this problem but came up with no real answer to my situation. Around July I purchased a 2006 Ford Mustang GT...

Hi Everyone, Just recently purchased a 89 LX from a guy who did not know much about it and has sat for ~5 years. My Father and I drained old gas (orange color) and changed the fuel pump. It now has 35-40psi fuel pressure, will turn over, start but run poorly. We are having two main problems...

My 1988 foxbody 5.0 5speed has been running really rich Only mods are gt40 upper and lower 75mm throttle body and exhaust I’ve checked for vacuum leaks and found nothing I’ve changed IAC and TPS still running rich and my fuel is starting to smell like fuel any idea? Thanks

I have been at this problem for months now and I can't seem to find a resolution so I'm hoping the more skilled people here can help before i start spending of money on having someone diagnose so here goes. I have seen several forums on my issue but everything i have tried doesn't seem to fix...

I just got 88 foxbody mustang gt. 5.0 with manual transmission. New to mustang's but I love them. Don't know to much about it.Aftermarket throttle body,no maf sensor,headers with x pipe,no egr valve. My pcv valve is wide open with nothing attached, and on passengers side there's a vacuum thing...

my mustang gt 1987 is still running very rich. I have replaced the o2 sensors which were caked in gasoline. I also put the smog pipe on the back of the engine so there will be no air leaks, ive also tightened my collectors from the headers down because they were leaking before. Now with all that...

New tadpole in the pond here But I am having some problems, i've thought long and hard about, but i live in the boonies, the mechanical experience is around here but i can't seem to come to a conclusion - had stock gt w/K&N intake - running fine - installed pypes o/r H - tried eliminators...

I recently replaced my lifters and I can't get my car to run right. The first time I tried to fire it back up it had a hard time turning over (after replaced battery, starter solenoid, cleaning grounds and moving dis. it fired up with a little assist from me pushing the gas pedal). I got it to...

Hey guys! I've been trying to figure out this problem since I bought the car back in June. The car is a 1990 Mustang Gt. Now this is how the problem started, the car had a idle fluctuation. The connector to the MAF had a broken clip so it wouldn't stay plugged in. So I got a new one, replaced it...

I've recently purchased a 2000 saleen series ii mustang that is: Running rich Idling at high rpms (1,500) Sputters at lower rpm band When I plug in my obd2 I'm getting "Malfunction indicator lamp (MIL) status Off", so I can not check for any error code, which is frustrating or a at least it...