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@  scottydoggs98 : (03 November 2017 - 11:49 PM)

no way you blew it up lol coupler might be bad already if its clicking when you turn th epulley back and fourth .

@  griff-97gs : (03 November 2017 - 04:43 PM)

blew my supercharger this weekend wen my serpentine belt snapped coming off the freeway anyone know the cost to hav one rebuilt

@  Loly : (23 October 2017 - 08:29 PM)

Check out MPD for hoods, I have one and Crazyguy03 has one as well and they are great for heat release and Cold Air (RAM AIR). Here's the link.... http://www.mpd1.com

@  bad108 : (19 October 2017 - 02:14 PM)

hoods

@  jwguinn : (16 October 2017 - 02:36 PM)

Anyone know the actual flow rate on siemens 60lb injectors? I have seen anywhere 60-65, that is big difference. I used 62 in my tune...

@  jwguinn : (19 September 2017 - 01:35 AM)

nvm I found it. ripoff! I think I will make one...

@  jwguinn : (18 September 2017 - 03:31 PM)

Anyone know the part number or where to get a replacement for the short very curved vacuum line that connects to the throttle body mine is split where it connects...?

@  EnderDRM : (13 September 2017 - 12:04 AM)

So the headers and 3" exhaust is on. Sounds pretty good.

@  bigbird90650 : (31 August 2017 - 09:12 AM)

I'm looking for regal "GSX" emblems. Anyone have any for sale? I am looking for the OEM SLP GSX chrome emblems. Thanks

@  EnderDRM : (30 August 2017 - 09:27 PM)

Hi all, I thought I would get the plugs replaced while the headers are being installed. Recomendations for plugs?

@  Marchi1 : (25 August 2017 - 02:08 PM)

Speedy daddy is the default cheap. I have been running pacesetters for 10 years and with the exception of one issue have had no problems.

@  scottydoggs98 : (22 August 2017 - 02:02 AM)

every now and again you get a poorily built cross over pipe and they dont fit right. only issue with them

@  scottydoggs98 : (22 August 2017 - 02:02 AM)

those are what most of use run, good ol speed daddy

@  EnderDRM : (22 August 2017 - 01:37 AM)

http://speed-daddy.c...cription_tabbed

@  EnderDRM : (22 August 2017 - 01:36 AM)

so what about these?

@  Fast86GN : (21 August 2017 - 09:10 PM)

Where the hell is everyone?

@  chromeGS : (19 August 2017 - 01:07 AM)

Long time since ive been on... hows everyone been

@  WildGS : (12 July 2017 - 04:11 AM)

You are making me do things....I need to spend time on stupid car stuff

@  Marchi1 : (12 July 2017 - 02:35 AM)

How is everyone doing tonight?

@  scottydoggs98 : (09 July 2017 - 12:52 PM)

some of the 99 pcms will work take a 01 bin, those you can change the vin # ive found.


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Lean idle/exhaust popping


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10 replies to this topic

#1 M_Dogg

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Posted 19 April 2017 - 12:52 PM

Hey guys
Ever since I got a new tune I've noticed my exhaust is popping at idle and whenever it's coasting. Fuel trims seem little high also, around +10. Under any other conditions car runs good, no popping, stuttering or power loss. Which tables can I look at/change to see if it goes away? Triple checked for any vac leaks, all good.
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#2 scottydoggs98

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Posted 19 April 2017 - 08:33 PM

that popping sounds like your res or mufflers are rusting out. 


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#3 M_Dogg

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Posted 19 April 2017 - 09:15 PM

Resonator is about 4 years old,mufflers are brand new.
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#4 tippietoejoe

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Posted 20 April 2017 - 02:33 AM

What tuner do you use?...this is an e85 tune?
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#5 M_Dogg

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Posted 20 April 2017 - 11:27 AM

HPT and that's an e85 tune.
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#6 tippietoejoe

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Posted 20 April 2017 - 04:38 PM

Damn I am running a dhp....there goes looking at your tune.....do you know what all was changed? Basically what needs to be changed is the IFR table, CMD AFR and the Trq abuse AFR tables..I assume this would be the same in a HPT software...I recently had to adjust my injector tables as the gas was being cycled out of "winter gas" it was leaning my car out aswell. I was seeing about a 5% difference. What size injectors are you running? I can send you my IFR Table and my Trq abuse AFR numbers and my CMD Afr is all set to 10.5....so leaning out might just be the gas station cycling out their gas....I always try to stick with 1 gas station by the way...it's easier for me to see patterns....this could cause the leaning out issue. As far as the popping it could be an effect of this as timing has been adjusted....that is something I haven't dealt with....at one time I did have to increase my idle rpm and fuel / temp table as the car doesn't like cold starts with a cam and e85....I am running 60lb injectors and if you have tiny tuner installed I can send you my tune if you would like to look at it for reference.
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#7 M_Dogg

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Posted 20 April 2017 - 05:54 PM

I do have 60lb injectors as well. I see all the tables in HPT you mentioned except for trq abuse AFR or maybe I'm blind... Yeah if you can send me what you have that would be awesome so I can compare. Thanks!

 

As far as getting gas from the same station - that's what I'm doing too hehe :handgestures-thumbup:


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#8 tippietoejoe

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Posted 20 April 2017 - 06:31 PM

Shoot me your email and I will send you my file....I will also will pull the numbers out of the tune or snap some screen shots incase you dont have tiny tuner to open my .bin
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#9 M_Dogg

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Posted 20 April 2017 - 07:00 PM

Pm'd


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#10 M_Dogg

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Posted 21 April 2017 - 12:48 AM

Thanks Derrick for the tables. I changed everything accordingly and no change-pop pop pop. It's not super loud but you can hear it. I also noticed it's only happening around 1000 rpm give or take so I lowered hot idle a bit, sounds much better but it's still there when I coast/let off the throttle. When I first started looking into it I looked at misfires on the scan gauge and after a long session in the garage I saw occasional misfire on 1 and 4 which is the same coil. So I replaced the ICM that I know for sure is good, swapped few coil packs - nothing. What are the odds of 2 wires going bad at the same time? ZZP wires, had them for 3+ years I wanna say and went through quite of few spark plug changes. Took them off/on as I was about to sell the car so they've been around the block lol. I'm gonna get new set of wires and plug away. Looked at the vacuum again today just to be sure -18 to -20. 3800 life :icon-lol:


Edited by M_Dogg, 21 April 2017 - 12:48 AM.

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#11 tippietoejoe

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Posted 21 April 2017 - 08:00 AM

Well crap that sucks...I thought as it was leaned out it might be fuel related. Hopefully it's a simple cable fix....don't forget about the icm mine took a crap on me once.
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