Please give me your thoughts if you have this mod.

I had my y pipe installed. Definitely feel the difference in performance. However one simple problem or could be major.

Why did the idle sped change? Has anyone else seen this too? HOw did you get it fixed. Go to the dealer?

When I drive local or highway, shifting back to neutral from any gear make the engine drop below 500 rpm and then it revs back to 650 rpm or 700 I cant tell. but the engine doesnt rev down like it used to.

The other day when it rained. The engine was really cold, I tried to start the car and it started but died out twice before I could get it to start. Even driving on highway today... going on the off ramp for an exit .... I shifted out to neutral and the car stalled. I had to start the engine before I lost control...

Any thoughts ... please help..

If i need to get the engine retuned or get the idle recalibrated please let me know. or is it because of less backpressure. Or because the ECU was not reset before putting in the y pipe.

 

Sounds like your MAFS has gone bad. Any chance you installed a intake or something under the hood when you put the Y-Pipe on, did you touch your Mass air flow sensor(MAFS)?

 

I agree with EMAX cause when I installed my Cattman Ypipe 3weeks ago, I did not notice any IDLE rpm changes. Everything seemed normal and still does. Only thing is I get wheel spin alot easier now.

Dixit

 

When I installed my Cattman Y-Pipe I didn't notice any changes in RPM idle. It stayed the same. The only time I noticed my RPM dropping or fluctuating was when I had an Intake leak. After I fixed that, all is fine now..

 

Thanks for the info. I dont have an intake and dont really know where the MAFS is..

Quite possibly the tech who put it in maybe damaged it. It is possible to repair it on my own or get a mechanic shop to fix it?

If I go to the dealer the warranty would be void right?

Any thoughts on how to get this repaired.

 

how will i know if my intake is leaking???

 

Put an incense stick upto it.

Dixit

 

incense stick???
what is that???

 

Okay forgot that idea, lets do this, get some kleenex tissues and put them next to the joints on your intake and see if the kleenex gets grabbed/pulled. If it does, there is a leak.

Dixit

 

I’m no expert but…

1. Reset your ECU. Can’t hurt.
2. Since this happened after the Y-pipe install, check your 02 sensors. Maybe one of them isn’t attached right or wires got cut?

 

I had the same problem cured by reprogramming the ECU for the fuel-cut issue.

Don't know if the 2k1s have the same problem or not. Don't know why the y-pipe would cause that problem unless it is 02 sensors. Could it be coincidence?

Only bad thing is I wouldn't take it to the dealer with y-pipe on there.

 

By the way, you don't need to restart the car, just let out the clutch (push it in first if you have to) and the car will restart itself. It's called a jump start.

(Boy I've been giving that advice a lot on this forum lately . . . wonder why).

 

LOL...now that throws me back...I used to sneak my car out at night by roll it backward outta the driveway and popping the clutch to start it. Then on the way back in kill the car and muscle the wheel to put it back in place....

 

sO ANYONE KNOW HOW TO GET IT FIXED? IF I GO TO DEALER... NO WARRANTY RIGHT?

IS IT COSTLY TO REPLACE THE MAFS.

 

Check your email, I replied to you.