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Hi all, I'm looking for anyone with experience with Torqbyte's PM4 Fuel Pump Controller in a B7 RS4. Since the OEM Controller for the RS4 is no longer manufactured, I need some kind of solution. My OEM Controller is fried according to a local shop, so I bought and installed a PM4 without looking clo...

I figured I'd post an update on how the RS4 is doing: Right now I have the whole front clip taken off for easier access to everything. As soon as I removed the intake manifold to start in on a carbon clean, I started to see signs that the maintenance history on this car wasn't what it had seemed. Th...

So I don't understand what's happening with this car at this point. I let it sit for a couple of days as I was busy at work. I hooked the battery back up and decided to pull codes again. I had done nothing to the car since the last time I pulled codes. Now instead of 4 codes, I'm getting 7: P0321 - ...

Okay, I pulled codes again now that I've gotten the car to start successfully. It dies shortly after it starts though. The codes are as follows: U0100 - Lost communication with ECM/PCM P0321 - Engine Speed Sensor (G28): Implausible Signal P0322 - Engine Speed Sensor (G28): No Signal P2020 - SAE: Int...

Thank you for the reply KNN! I'm definitely going to check that ground to the starter, as the car had its oil cooler lines replaced due to leaks before I picked it up from the dealership and there's definitely evidence of oil all over the belly pan. I've already replaced the clutch switches and fuel...

Update: I was able to get my hands on a basic OBD2 Scan Tool, and it pulled a single code: U0115 - No Communication with ECM B. I looked into this online, and apparently a failing battery can sometimes cause problems like this. Grabbed a new Interstate AGM from Costco, no dice. Then I peeked underne...

I wish this weren't my first post here, but here it is! I recently picked up a 2007 RS4 with around 142,000 miles on it. I knew it'd need some TLC mechanically, but cosmetically it's in pretty good shape. Less than a week after picking it up, I started to have intermittent starting issues. The first...