I still have a bit of hesitation especially at wot and at low rpm's. It seems to run better at night when it is really cold. i went to take off my intake elbox and it is torn where it connects to the throttle body. Could this cause bad hesitation?

 

I believe it could be. If you have a 94+ car I would say yes, because that is unmetered air going into the engine.

 

What year is your car? 94 and later MAF cars will run like crap with that elbow leaking. In a 93, speed-density will not have the same problem... you'll just be feeding dirty, unfiltered air into the engine.

 

I think you are right...you know why? I have the same DAMN problem. I am trying to fix my headers and get my exhaust done at the same time, so I don't have the money to buy a Trick Flow elbow this second, so I am just having the wait. It's annoying though. The hesitation is real bad. Especially when I ripped it even more when I put the 52mm BBK TB on.

 

Mine was torn, so I cut about an inch off, then popped it back over the TB and clamped it down. problem solved

 

it is a 94 m6. So will a tear cause hesitaion? why is it better at night when it is colder?

 

The car will probably just run better at a cool temperature cause the air is so cold and they love having that cold air being taken in. But yes, a tear can cause hesitation.

 

Yes.... its fair to say "runs like crap" can include "hesitation".

At night the rubber is colder and less flexible, probably admits less air.

Why not just get some duct tape and try sealing off the leak. That will answer all your questions. Just make sure you avoid the possibility of duct tape getting sucked into the intake.

 

well i looked at mine the other day, and it was impossible to repair with duct tape but how much can the intake elbow cause hesitation?

 

How big is the hole?

Basic info.... the PCM uses the MAF sensor to measure how much air is entering the engine, then adds the required amount of fuel. If air enters the intake AFTER the MAF sensor, it hasn't been "measured", so the PCM does not know about it. A huge mass of air hits the engine, and there is no fuel to burn = STUMBLE. All the unused air goes out the exhaust, the O2 sensor says "LEAN" and starts adding the extra fuel. Your long term fuel corrections get all messed up, making it EXTREMELY difficult for the PCM to provide the correct air/fuel ratio.

How big the stumble is depends on how big the "leak" is? How many angels can dance on the head of a pin? I don't know.

Just fix it.

 

so if the edge is ripped up, maybe 1 inch rips from the edge that connects to the throttle body and there are about 3 or 4 ripps like that, if i try to put duct tape im afraid it will get sucked in, so i'll wait till i get my 1LE

 

I duct taped mine until I replaced it. Ran tape all the way around it and put it back with clamp going over duct tape.

Tape was still in place exactly after 3000 miles when I got around to replacing tron elbow.

 

ok i cut off everything to the first notch cause everything was torn right around there, and put it back on i havent run it yet but i think the problem is still there

 

You will want to reset your ECM after you repair/replace the elbow. You don't want the old BLMs to skew the results. If you don't reset it, the ECM will correct itself over time.

Just disconnect the battery before you start the elbow, and reconnect it after you are done. That should allow plenty of time for the ECM to reset.

 

why do i need to reset it?