Recent content by xxsurvivalism

Haven't been on here in a while. Last time I was, I had been spending months tracking down my fuel trims blasting at 20% during idle. Guess someone had wiped the tune off the car and didn't tell me... So I got it dyno tuned and running like a bat out of hell. Then sent the GT500KR hood into the...

Upstream o2's are new NTK 22060, Downstreams in the xpipe are new NTK 22500. Ya there was some swapping around of the o2 sensors for datalogging, to see if there were any significant changes. I can see how some of the pics got confusing. Looking back at this whole situation, there's a million...

Cold start. Just a peak at it, it goes down 550 lines.

Helped a bunch, thank you. I put new (and correct) NTK's downstream. Also replaced the CPV. Fired it up to datalog. Initial start was probably the worst it has ever run. It smoothed out somewhat after warm up and the fuel trims seemed to come down a bit. I even saw normal fuel trim numbers...

Probably should have mentioned I unplugged my EVAP purge valve's power and then the line going to the canister. Put my finger on the purge valve inlet stem and it was still pulling vacuum. So if it is stuck open, seems like it would be pulling fumes/air into the intake manifold and creating a...

Question: Why would someone install a catless offroad x pipe with long tubes... And have rear 02 sensors? And they are wideband. I didn't even notice them til a few days go. Feel like an idiot. If the downstreams are being pummeled by exhaust that isn't passing through a catalytic converter...

Pulled the cam cover, they are indeed Comp Cams XFI NSR Stage 2. Now that I know that, I can get a tune haha. Was also reading a blog that includes information from Lito. Apparently the Motorcraft O2 sensors (as GlassTop09 had mentioned) are insanely slow, don't heat up well and are basically...

They look...... Alright at best. It's my personal opinion though. The S550 reminds me of the new Camaro styling. Just bulky. Looks like an S197 with lip injections lol

Helps a TON man, thank you so much. I'll start looking into those 3 things tomorrow. Much appreciated.

I really do appreciate the help, fellas. Thank you.

Starting to think that someone uploaded a canned tune with the MAF installed backwards..... or something. That's all I can think of at this point lol.

Also datalogged while driving at temperature. Both banks are lean around 20% at idle. Driving under light to moderate load, the banks jump to 40% to 50% lean around 2500-3000 RPM. Then if I decelerate from 3,000 both fuel trim banks zero out. They stay at zero until I begin accelerating again...

I caught the hesitation while datalogging. This is a warm start, the car had been sitting for maybe 40 minutes before logging this. Started, fuel trims are at a staggering +60 (60% lean). Then the idle drops (which the datalog didn't seem to capture because the tach dropped to like 400 RPM)...

Small update: Got the Brisk plugs, waiting on the new MAF to arrive before I throw everything together. The car is running so lean now that I refuse to drive it til this is solved. Made a profile on Torque Pro, realized that my Fuel Trim Bank 1 was around 22% and Bank 2 hit 31%. And apparently...

Funny thing about the maf. When I bought the car, it was running rough. After pulling stuff apart for routine maintenance, I noticed the maf was installed backwards. Don't know how long it was run like this, but I have a hunch it was quite a while. Maybe running it backwards for thousands of...