Help! Stuck in limp mode!

[Smuffy]

I do have a compression tester. With a healthy dose of N2O and ~160K on my GT's motor I figured it'd be preventative maint. As far as air, I have a 33? gallon upright, 6hp, 160psi, but what adaptors would I need? Or can I just buy a kit at Autozone? I'll stop by there when I get my return back next week and pick up as much as I can. The remote start is a great idea! I've always had to have someone help me with the cranking before so I could watch how the needle spiked. Thanks for the info!

As far as coolant, is the orange stuff okay? The old will be completely flushed but I want to make sure I don't get a kind that could be detrimental to the motor/seals/hoses whatever. I would assume that the orange dex cool approved kind would be okay though right? I believe it's what the shop put in when the sold me the truck.

 

[Smuffy]

Sorry about neglecting this. I just switched from dialup to cable and had a lapse in service and I've been looking for a leakdown kit to no avail.

Anyways, I was able to compression test the cylinders successfully. All the numbers were w/in 15% of each other, they all jumped right up on the 1st crank. Nothing to let me know something is wrong internally. The next weekend I dumped all the coolant I could and tried to run a cleaner but wasn't able to do a complete flush where you leave the cleaner in and run it for a couple days due to the low temps. Regardless I switched coolant, the thermostat and the coolant temp sensor. Reset the ECU and it ran great for 2-3 days now it's back into open loop or whatever you call it. So somewhere I have a sensor that's fried and for some reason my CEL is telling me that my O2's are having problems adjusting. Just guessing that they might only be having problems adjusting when the ECU is entering open loop and starts spitting tons of fuel out? I'm really starting to lose it. Any ideas would be appreciated.

 

[Smuffy]

Just thinking, since the coolant was fried from the leak I had, could the IAC have suffered from this? I've never known an IAC to do more than make the idle jump, but then I'm pretty new to this OBD II thing. Thanks again.

 

[thecause17]

I'm not sure about the IAC, but I'm having a similar problem with my SOHC, but no codes though, and I'll be looking into the IAC as well, or is it a BAC, same thing pretty much aren't they?

 

[Smuffy]

Don't know. To tell you the truth I'm not sure how the truck measures Idle air. I've been trying to find a Ford tech cd online for a decent price. I'm hoping if I can learn more about it's systems and sensors I might be able to track down what's causing me to stay in open loop.