Recent content by Airjunky

So the fuel pressure gauge from O'reilly's proved to be inaccurate. I have around 49 psi of fuel pressure. At that point I figured it was time to remove the intake and exhaust that I had installed and started this mess. I'm pretty good at it by now so I had it done pretty quickly. And found...

Went to O'reilly's today & borrowed their fuel pressure gauge. I did it twice, and it showed I had no fuel pressure..... zero. Even when I pushed the pin on the Schrader valve, I just got a few little drips out. I don't get how, if I really have no fuel pressure, that the damn thing runs at...

A buddy of mine suggested maybe a valve bent recently. The backfiring would be compression coming through.

Yea, I'm stumped too. I get that it might be a timing issue, and timing is adjusted by the ECU based on the sensors input. I've also read that backfiring thru the intake is a lean fuel condition. All I can think is to take it apart again. But what would I be looking for?

Pulled the IAC and cleaned it with some brake cleaner. It really wasn't bad, not a ton of carbon. Although it was made in Mexico so maybe it was replaced with a cheapie at some point. I haven't seen a CEL since before the job. And I don't think it's ever stalled. The idle is down 100 or so RPMs...

It's not an exhaust leak. I ran my hand all around the exhaust and intake manifold at the head and am not feeling anything. I had a buddy come over and look at it. It's very clearly coming from the intake tube....the air cleaner. Swapped out the crank position sensor and there was no change.

Found several threads mentioning the crankshaft position sensor and various misfire, backfire, non-start issues. This one in particular Looking for NTK part #s now

Thanks for the input Rubicon88. But this engine only has 10k miles on it. It ran great Saturday morning, all day Friday and Thursday after I did the work. I thought about ignition problems, but with no distributor, what can I do? The coil rail is in good physical condition. Wiring harness looks...

2002. So no distributor, has a coil rail and no spark plugs wires, cam sensor etc

Yep. I bought NTKs I thought I was resetting the ECU by just pulling the negative. Guess I'll try this method instead. Thanks

So can you tell me what it was that he did? I removed the EFI, intake manifold and the header. I installed a new Felpro gasket & new O2 sensors in stock used exhaust manifolds (the 2 pc). I tried to be really careful getting the exhaust and intake manifolds in place and properly aligned. I read...

I recently replaced a cracked exhaust header with the stock 2 pc exhaust manifolds. This involves removing the EFI, intake manifold, exhaust, unplugging all the O2 sensors and swapping 2 O2 sensors from the old header to the manifolds. After installing the manifolds I drove the Jeep about a...

Hey guys, Digging up an old thread. I'm considering an LS swap in the TJ, specifically a 4.8 or 5.3, and am curious about cams for low / mid range torque. I've talked to a couple guys who have done the swap and having all the power at 4400-5500 RPMs is a little less than ideal. I'm thinking to...

I have a 30 mbps Centurylink fiber connection & use 3 Rokus, 3 PCs & multiple phones & tablets with hardly any buffering at all. The issue is not the speed, but the latency. Fiber has almost none. Whereas cable, cellular, microwave & satellite can have a ton. I've used the Starlink service a...