Much appreciated! I just ran the fuel pressure test, and it failed miserably. It took 7 key on cycles just for the pressure to get to 10 psi, and when started, the pressure dropped right to 0 psi.
Yeah that’s a good point. Might as well do it with the tank lowered. Any pumps that you would recommend? I’ve heard the svt focus pump works with these.
Thank you for the tips! I’ll definitely pick one of those up. Thankfully, I’m sitting just over a quarter tank. I guess while I’m at it, it’ll probably be a good idea to replace the filter and fuel lines as well.
Yeah I’ve never seen fuel pressure that low on anything. It especially shouldn’t be decreasing during acceleration. So I’m going to cross reference that with an old fashioned fuel pressure test a little later on and see what that shows. The sensor would probably be the first on the list to...
That’s not a bad idea. Something else I found out was that it has pretty low fuel pressure. Like 12 psi at startup/ idle, dropping down to 6 psi while accelerating. Not normal at all.
He used a sct x4 to tune it. Not really sure if he used a canned tune or had a custom tune put in using that. I overwrote that tune using my Hypertech just to see what would happen. It was pretty stable until it got up to operating temp. Then it just started hesitating and bucking when I’d...
For some reason the picture sizes are too big for the server to process. What I did find out also was that I couldn’t take past 3000 rpms... after cold start.
Yeah out of whack cam timing would make sense. I did go into it knowing there were a couple of issues, I just didn’t know quite how deep they went. I got a pretty good deal on it. As far as maf and injectors, I couldn’t say to be honest. If I had to guess, they could be stock. As far as...
Yeah I was considering that as a possibility too. It just seems kind of suspect that something like that would be happening on the bank with higher compression. Wouldn't the compression numbers be significantly less on that side if one of the pistons had bad rings?
It’s all good, I appreciate the response. Yeah I have a reader. Unfortunately, no CELs and no stored codes either. I’m pretty sure it could be attributed to the tune that’s on there as well.
Hello all. I'm fairly new to the modular 4.6l/ford world in general. I recently bought a 2001 cobra with 800 miles on a freshly rebuilt motor with '03-'04 internals. It currently has a JLT cai, ported DB cast 9 thread heads, and custom tuned. The main issue I'm having with it is cylinders...