So, I installed the space and the thermal gasket over the weekend, started the car up, couldn't hear any leaks, idled fine, sweet. Drove to work, everything was great, but at my last light before getting to work the car stalled when I pushed the clutch in. On lunch happened a couple times as well, when I push the clutch in, the rpm's drop too low and the car stalls. It doesn't happen every time, just occasionally.

I am going to do the throttle body reset and then reset the ecu. Any other ideas? I don't see any loose hoses.

 

ECU reset

 

Did the ECU reset, throttle body re-learn procedure, and used my Cipher to raise the target idle up a bit and took it out for a spin. It did not stall, so hopefully it's fixed

Hey Will, I got a Random misfire code a while back and cleared it, and today I got it again, so I think I need new spark plugs, does that sound about right?

 

spark plug sounds right but do you have a vac. leak?

 

Not that I can see... all hoses are plugged in

 

random misfire...maybe...check ur plug gaps...how old are they?

Oh bring ur Cipher to the meet...i need to raise my idle!!!!

 

I'm guessing it's the idle raise that helped the most. ECU reset didn't help my stalling after Stillen intake install.

Did it only stall if you put it in neutral above a certain speed? For me it's ~50mph.

 

I'll bring the Cipher to the meet. I wanted to use it for a few runs today to log my A/F ratios after the test pipes and plenum spacer, but fixing my stall issue took precedence.

BlueDevilBAMF, I didn't have to be above a certain speed for it to stall.. sometimes just slowing down for a traffic light and it would stall. I heard that cold air intakes can cause stalling when you shift into neutral from higher rpm's, did you manage to find a fix?

 

Not yet... it's not really an issue anymore - just adjusted my driving style not to ever go in neutral at high speeds, which you really shouldn't anyway. I might mess around with taping up all or part of the wide intake tube just over the grille. Might help

 

i was thinking about getting a 5/16" spacer for my 2004 5AT coupe.

Did you feel any power gains?

Has anyone ever heard of the auto having stalling problems after installing this?

 

You might need to clean your throttle body.

 

Stalling problems where fixed, no longer happening. I am going to re-tune my car on Monday, so I will be able to tell you how much power was gained. Before the 5/16th spacer I was at ~350whp.

 

So I wonder if it was the ECU reset that did it or the throttle body reset?? I was having the rough idle problem after cleaning my plenum but have since realized it's the oil catch can that is causing a vacuum leak. Since I bypassed the oil catch can it has been fine... I also tried the throttle body reset which didn't help any since my problem was the vacuum leak.

 

No clue, I kind of did everything I could think of all at once, hoping something would work, lol. I was not excited by the prospect of taking everything apart and putting it back again. Now I'm back to not worrying about stalling at every light and turn, yay!

Quick question for Jon and William, and any FI folk reading this. What spark plugs are you running? I seem to remember reading that turbo vs supercharger have different needs as far as spark plugs though.. am I making this up because it's late?

 

I replaced my spark plugs while doing everything else a few weeks ago so I did a bunch of research first. In the end I ended up going with the same thing as William...

I had been running the stock Iridium plugs for the last 30k miles with no problems. I decided to go with a 1-step colder copper NGK plug. The downside to copper plugs is that they have to be replaced every 10k miles. The upside is that copper is a better conductor and therefore creates a better spark. The reason to go 1-step colder with FI is the increased heat caused by more fuel+air leading to greater chance for detonation. The 1-step colder plugs are able to maintain a lower overall temperature. Some people have noticed cold starting issues but that's mainly with people using 2-step colder plugs...

You can continue to use the Iridium plugs which last far longer but I would still recommend going 1-step colder...