Time to Tune.

[Blizzard242]

So I've finally got a good turbo in the car and it's all up and running but Crap. I have to start tuning and I don't even know where to start. Besides injectors which I'm not even sure I've tuned those in right. This is hard stuff for a noob.
The problem I'm having is that the car doesn't idle very well. It's almost as if you pulled off the brake booster line but the rpms go up and down in longer slower intervals.
Is the injector table suppose to be flat or ramped? I thought that manifold referenced fuel pressure regulators were suppose to be flat and non referenced are suppose to be ramped. I saw a whole thread on HP tuners forum about that. For some reason I ramped my injector table. Yeah I dunno wtf i'm doin yet.

Oh and.. in a 98 is there suppose to be a Injector pulse width average for bank 2 in the scanner? Theres one in my 02 scan but eh maybe I messed the config file up.

[ssms5411]

Re: Time to Tune.

I would invest in a wideband, if you don't already have one. For the injector pulse width mine are around 2.5 at idle. Download some of the bin. files on Hptuners and check them out. Viper's write up is the way to go using in the fuel section click PE I think it is and it has a youor ECT vs time or A/F and your can set it whatever you want your WOT to be, he has the best write up I've seen so far. Good luck , its not that hard to tune once you start doing it.

[Blizzard242]

Re: Time to Tune.

Yeah I've got a wideband. But what's kind worrying me is if there are suppose to be any readings from the injector pulse width bank 2. Bank 1 is bouncin how it looks like it should but theres absolutely nothing in bank 2. I'll be playing around with this some more when I get a new power chord for my laptop. Just broke it an hour ago..

[ssms5411]

Re: Time to Tune.

I would wait until your cord is fixed and everything is working, then monitor it. You can always send your scans to me if you want along with the current tune, I'll take a look at it for ya. ssms17607@msn.com

[Blizzard242]

Re: Time to Tune.

I sent them. Like I said in the email, I have an idea why it's acting up. I'll get a chance to mess with it when my gf gets here with her laptop. Hopefully what I'm thinking is correct and I'm not really lost before I even get started.

[Blizzard242]

Re: Time to Tune.

Well I solved the crazy idle problem. It was so dumb. It just hit me out of no where. During some of the work I took out the MAF screen so I wouldn't damage it. Yeah I never put it back in. Didn't even think it would make that huge of a difference. Oh how wrong was I. It idles absolutely fine now and now I'm not paranoid of a vacuum leak or that half the injectors aren't working right. All because of that damn little air straightening screen.

[zpwn06]

Re: Time to Tune.

Well I solved the crazy idle problem. It was so dumb. It just hit me out of no where. During some of the work I took out the MAF screen so I wouldn't damage it. Yeah I never put it back in. Didn't even think it would make that huge of a difference. Oh how wrong was I. It idles absolutely fine now and now I'm not paranoid of a vacuum leak or that half the injectors aren't working right. All because of that damn little air straightening screen.

haha this is a great example of why people shouldn't take it off. "But it restricts airflow." Nope.

[Blizzard242]

Re: Time to Tune.

haha this is a great example of why people shouldn't take it off. "But it restricts airflow." Nope.

Yeah and I wasn't even worried about it restricting flow since I'm FI now. :banana: