Lumpy idle.
 

So, my idle is lumpy and very lean. My wideband(uego) often pegs lean during idle. I richened up the idle cells and it smoothed out a little bit but in order to richen it up, I had to change the VE idle cells to over 100% and my idle afrs were around 13ish. Anybody have any tips?

Thanks in advance,
Wes

Use the hi-res code if you're not already.

what size injectors? what's your timing at idle?

oh, shit sorry i thought it was in my sig. 460's. My msq is there, im not sure about the timing.

So, i flashed the HR code and it leaned everything to hell and back. I had to increase the entire VE table by 25% to make the damn thing drivable. I am still getting 14's under boost so thats no good. I drove my other car to work today and i will be working on it when i get home. I also have a random miss. I will be searching on problems with HR.

okay, either i suck ass at searching or other people are not having this problem. I flashed to the newest HR code and now i have a random misfire. It happens at all different times. I havent gone into boost because now, my boosted cells are untuned. I will log it when i get home.

Do you have the cap mod to eliminate noise/interference on the tach input? solder a .1µF capacitor between JS8 and Ground to act as a filter. This eliminates random misses and allows you to use Hi-Res code successfully.

As for going lean as fuck it happens to everyone when switching to high res, try scaling the whole table if you havn't already and make sure the req fuel value is correct for your 460's

I was REALLY hoping i wouldnt have to open up the mspnp.

http://www.radioshack.com/product/in...entPage=family

is that what i need?

Check for the revision letter under the MSPNP on the label - it may already have the cap mod. What revision do you have?

hmmm i bought it in august or september of '07 i know it was not long after it came out. I dont have the car with me here at work. Does the date of purchase tell you anything?

http://www.radioshack.com/product/in...entPage=family

oh, THATS what i need, right? (crosses fingers hoping the cap mod is already done)

Order Number: 14597
Detailed Invoice: https://www.diyautotune.com/catalog/...order_id=14597
Date Ordered: Tuesday 04 September, 2007

Oh, one more thing, How long is the warranty on the mspnp anyway? And would me doing the cap mod, void the warranty?

Thats the cap. I put that in and it solved all my misfire problems. Was and easy install.

Yes, that should work just fine(the second one) You could also send it back and have us do it. It would take a bit of turn around time though.

It won't void your warranty as long as the mod didn't cause the problem.

when did they start being made with the cap mod already done?

Jan 08. You ordered yours before then it looks like.

If you did want for us to do the mod, just send us an email, and we'll get you fixed right up.

yeah, i bought it in sept 07

Okay, i have not done the cap mod yet, it is coming. However, here is a log. The SecL DOES go back to 0 when i get the miss. Is this normal? (look at 214)