Victory Is Mine!!!!

[AWD93TSi]

FINALLY!!!!! I got my car running the way it should. Idle is set, no boost leaks, timing is spot on. Only a few DSM related Q's.


When my car is cold and I start it it idles around 2k-2200, then slows down to 16-1700, then settles around 1k, and finally comes down to 750. Is this normal?

Also When I'm "Jammin" on it I can't get anywhere near red line. It seems like I'm getting "fuel cut" around 4500rpms or something. Would the fuel pump rewire help with this?

The car holds boost solid. No creep, no spikes. I'm running 10lbs. <- reading on an aftermarket gauge I know is calibrated correctly. I have the "j-pipe" to wastegate "boost controller". I have an MBC but I'm afraid I'ma eff something up since I'm a turbo n00b. Any advice on this? I can't remember if in means increase, or if in means decrease....

Thanks in advance!

 

[Lonnie gandee]

Its def not fuel cut.... Well... Maybe.. Its so cold outside... But doubt it...If your car wont pull to redline something is wrong.... COuld be boost leaks still...


Are you totally stock...

 

[AWD93TSi]

I'm about as stock as stock gets. Minus a different stereo and my oil pressure and boost guage. And the fact my car has a 6-bolt. But I still have stock exhaust for cryin out loud!

 

[4wdtalon]

check your cat.

 

[JMiller]

Could be ignition related, plugs, wires, coil.(for the not getting to redline issue)

 

[cavillac]

When it starts cutting out are you in boost? If you're out of boost will it run fine?

Sounds like bad/and or improper plug gap

 

[Jeremoose]

Definitely not fuel cut.

I have to agree your boosting problem sounds plugs/wires related.

Lastly. you mentioned it idles high when you start and slows down to around 750RPM's, this sounds normal, but is it rough at 750RPM's or smooth? I mean, do you feel like you have to gas it up to keep it running?

 

[AWD93TSi]

Definitely not fuel cut.

I have to agree your boosting problem sounds plugs/wires related.

Lastly. you mentioned it idles high when you start and slows down to around 750RPM's, this sounds normal, but is it rough at 750RPM's or smooth? I mean, do you feel like you have to gas it up to keep it running?

I think I'm gonna get new plugs this weekend since the ones that are in there might be fouled because of it being slightly out of time before. Plug gaps is 0.38 right?

It idles smooth. It just hangs kind of high for 2-3 mins maybe, possibly less. I have ADHD so patience isnt really my virtue. The whole idle process takes all of 5-10mins, maybe. I think its normal because as stated before it idles/runs fine minus the can't reach redline.

When it starts cutting out are you in boost? If you're out of boost will it run fine?

Sounds like bad/and or improper plug gap

Yes.

 

[JMiller]

Gap is .28

 

[Kastigir]

The high idle in the cold is normal.

 

[thatblondechik]

+1 JMiller
I had the same issue as the OP, not being able to get above 4-4.5k without a stutter/bog/backfire. Checked my plugs and did a leakdown. I wound up having boost leaks on all 4 injectors and my plugs were gapped at .35 instead of .28 (although I'll be keeping them at .27 or so with this new engine). Regap and do another leakdown to be safe. But I'll put money on your plugs.

 

[AWD93TSi]

I'll have to do all that this weekend. It sucks that I have to pull the motor now tho.... clutch slip!

 

[dSmgs-T]

your idling is fine. thats just the fiav which on cold starts has the car idle higher to warm the car up quicker, and then gradually drop down to where it should be.

 

[97 4G63]

I have high idle all day because of my big ass front mount and koyo radiator my car only comes up to driving temps at stop lights..
Tonite i did not have to turn on my fans at all and every time my car gets to idle it goes to like 1.3k
rpm's