# The New Rims

**URL:** <https://forums.speedlife.net/t/the-new-rims/237224>\
**Category:** Shift518 Automotive\
**Created:** [June 7, 2008, 10:14am UTC](https://forums.speedlife.net/t/the-new-rims/237224 "2008-06-07T10:14:01Z")\
**Posts on this page:** 20\
**Page:** 9

<div class="post-metadata">

**Author:** ![Boosted](https://avatars.discourse-cdn.com/v4/letter/b/e19adc/32.png) [@Boosted](https://forums.speedlife.net/u/Boosted)\
**Post date:** [June 10, 2008, 10:56am UTC](https://forums.speedlife.net/t/the-new-rims/237224/161 "2008-06-10T10:56:04Z")

</div>

> [@SSmokinn SS](#):
>
> Hey john, my buddy John that helped my tune my car…just looked at my file we scanned. He said me PE fuel enrichment tables have been changed before…He said someone leaned the car out from idle to 2K…this is his exact words…
> 
> “your car has been tuned before though”  
> “your idle is different than stock”  
> "your VE is leaned out @ 15-20kPa up to 2k RPM  
> “other than that, it’s stock lookin”
> 
> maybe the car with the headers is too lean now at idle and under load in 6th @ 1400-1800rpms?? and thats setting a misfire?

When your car is idling/part throttle it’s using the O2s to figure out how much fuel to add/subtract to hit a stoich (14.7) AFR. The ECU will use that adjustment (fuel trims) to add fuel to your PE map under WOT if they’re reading lean, but they won’t take away fuel from PE if you’re running rich.

So in 5th/6th gear at part throttle \<2000rpms your fueling is coming from what your O2s say is stoich. If your car is running lean your fuel trims will add fuel till you’re running stoich. If your car is running lean beyond the adjustment of your fuel trims the computer will throw a lean code. So unless it’s just one injector that’s screwed up and one cylinder running lean I doubt you’re running lean and it’s causing the misfire.

If your spark plug is looking clean maybe your injector isn’t firing? Since you already tried swapping injectors maybe it’s the injector harness wiring?

---

<div class="post-metadata">

**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\
**Post date:** [June 10, 2008, 10:58am UTC](https://forums.speedlife.net/t/the-new-rims/237224/162 "2008-06-10T10:58:37Z")

</div>

> [@30r\_logik](#):
>
> switch coilpack 5 with 7?
> 
> i thought you took it to the dealer to get it fixed?

Reading is your friend.

---

<div class="post-metadata">

**Author:** ![tdi\_logik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tdi_logik/32/6310_2.png) [@tdi\_logik](https://forums.speedlife.net/u/tdi_logik)\
**Post date:** [June 10, 2008, 11:00am UTC](https://forums.speedlife.net/t/the-new-rims/237224/163 "2008-06-10T11:00:50Z")

</div>

> [@SSmokinn SS](#):
>
> Reading is your friend.

not really interested in reading 7 pages of garbage.

a cliffnote would be nice.

---

<div class="post-metadata">

**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\
**Post date:** [June 10, 2008, 11:00am UTC](https://forums.speedlife.net/t/the-new-rims/237224/164 "2008-06-10T11:00:54Z")

</div>

> [@Boosted](#):
>
> When your car is idling/part throttle it’s using the O2s to figure out how much fuel to add/subtract to hit a stoich (14.7) AFR. The ECU will use that adjustment (fuel trims) to add fuel to your PE map under WOT if they’re reading lean, but they won’t take away fuel from PE if you’re running rich.
> 
> So in 5th/6th gear at part throttle \<2000rpms your fueling is coming from what your O2s say is stoich. If your car is running lean your fuel trims will add fuel till you’re running stoich. If your car is running lean beyond the adjustment of your fuel trims the computer will throw a lean code. So unless it’s just one injector that’s screwed up and one cylinder running lean I doubt you’re running lean and it’s causing the misfire.
> 
> If your spark plug is looking clean maybe your injector isn’t firing? Since you already tried swapping injectors maybe it’s the injector harness wiring?

ALL of my spark plugs looked clean besides #7 which is odd because thats not the cylinder that is registering as a misfire, although it is right next to #5…#7 plug was dark brown on the whole entire plug while the other 7 looked still like new.

---

<div class="post-metadata">

**Author:** ![Boosted](https://avatars.discourse-cdn.com/v4/letter/b/e19adc/32.png) [@Boosted](https://forums.speedlife.net/u/Boosted)\
**Post date:** [June 10, 2008, 11:24am UTC](https://forums.speedlife.net/t/the-new-rims/237224/165 "2008-06-10T11:24:22Z")

</div>

That is wierd because if one injector isn’t firing then the other cylinders in that back usually run rich since they share an O2 and the computer tries to compensate.

Are you seeing any knock?

---

<div class="post-metadata">

**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\
**Post date:** [June 10, 2008, 2:02pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/166 "2008-06-10T14:02:14Z")

</div>

> [@Boosted](#):
>
> That is wierd because if one injector isn’t firing then the other cylinders in that back usually run rich since they share an O2 and the computer tries to compensate.
> 
> Are you seeing any knock?

not sure…havent logged it

---

<div class="post-metadata">

**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\
**Post date:** [June 10, 2008, 4:52pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/167 "2008-06-10T16:52:12Z")

</div>

well, back to the dealership it will go…

I just did a compression test…

cylinder 7 = 162psi

Cylinder 5= 55psi

they better fuckin still warranty it or im gonna flip out…my warranty voids in 30 miles. So it will only be driven to the dealership.

so I guess a 13.6 @ 106 on 7 cylinders isnt all that bad :crackup

---

<div class="post-metadata">

**Author:** ![tdi\_logik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tdi_logik/32/6310_2.png) [@tdi\_logik](https://forums.speedlife.net/u/tdi_logik)\
**Post date:** [June 10, 2008, 4:53pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/168 "2008-06-10T16:53:00Z")

</div>

> [@SSmokinn SS](#):
>
> well, back to the dealership it will go…
> 
> I just did a compression test…
> 
> cylinder 7 = 162psi
> 
> Cylinder 5= 55
> 
> they better fuckin still warranty it or im gonna flip out.

holy shit…

---

<div class="post-metadata">

**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\
**Post date:** [June 10, 2008, 4:55pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/169 "2008-06-10T16:55:54Z")

</div>

odd, are you passing oil at all? probably dropped a valve. hopefully the dealer doesnt VOID the rest of the warranty due to the modifications.

---

<div class="post-metadata">

**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\
**Post date:** [June 10, 2008, 4:56pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/170 "2008-06-10T16:56:53Z")

</div>

if the cyl is washed down it will do that get about a teaspoon of oil in the cyl and try again see if it pumps up and stays up ?

---

<div class="post-metadata">

**Author:** ![94Gt5.0](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/94gt5.0/32/6377_2.png) [@94Gt5.0](https://forums.speedlife.net/u/94Gt5.0)\
**Post date:** [June 10, 2008, 4:57pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/171 "2008-06-10T16:57:27Z")

</div>

> [@SSmokinn SS](#):
>
> well, back to the dealership it will go…
> 
> I just did a compression test…
> 
> cylinder 7 = 162psi
> 
> Cylinder 5= 55psi
> 
> they better fuckin still warranty it or im gonna flip out…my warranty voids in 30 miles. So it will only be driven to the dealership.
> 
> so I guess a 13.6 @ 106 on 7 cylinders isnt all that bad :crackup

:nod That will do it, good you did the test sooner than later, that woulda been bad lol

---

<div class="post-metadata">

**Author:** ![tdi\_logik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tdi_logik/32/6310_2.png) [@tdi\_logik](https://forums.speedlife.net/u/tdi_logik)\
**Post date:** [June 10, 2008, 4:58pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/172 "2008-06-10T16:58:31Z")

</div>

> [@Mk4 30R](#):
>
> odd, are you passing oil at all? probably dropped a valve. hopefully the dealer doesnt VOID the rest of the warranty due to the modifications.

best of luck… sounds like you need an overhaul drew.

---

<div class="post-metadata">

**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\
**Post date:** [June 10, 2008, 4:58pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/173 "2008-06-10T16:58:31Z")

</div>

> [@88slowmarro](#):
>
> if the cyl is washed down it will do that get about a teaspoon of oil in the cyl and try again see if it pumps up and stays up ?

good point. very well could be, but if thats the case, the problem still lies with electronics, because hes getting alot of unburnt fuel in that cylinder if its even got the chance of cylinder wash

---

<div class="post-metadata">

**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\
**Post date:** [June 10, 2008, 4:59pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/174 "2008-06-10T16:59:07Z")

</div>

gt5.0 as of now i guess u were right car ran to good to think it was dead but i never tore into it either

---

<div class="post-metadata">

**Author:** ![94Gt5.0](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/94gt5.0/32/6377_2.png) [@94Gt5.0](https://forums.speedlife.net/u/94Gt5.0)\
**Post date:** [June 10, 2008, 5:00pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/175 "2008-06-10T17:00:18Z")

</div>

> [@88slowmarro](#):
>
> gt5.0 as of now i guess u were right car ran to good to think it was dead but i never tore into it either

Yea only reason i said that is cause we had the same scenario about a week ago on my buddies car. It shocked the hell outta me.

---

<div class="post-metadata">

**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\
**Post date:** [June 10, 2008, 5:01pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/176 "2008-06-10T17:01:41Z")

</div>

> [@88slowmarro](#):
>
> if the cyl is washed down it will do that get about a teaspoon of oil in the cyl and try again see if it pumps up and stays up ?

I pulled out the injector fuses when I did the compression test…so it cant be washed out?

Even started the car with the compression tester still hooked up to cylinder 5 and let it run for about 45 seconds…stopped right at 55 and didnt budge

---

<div class="post-metadata">

**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\
**Post date:** [June 10, 2008, 5:02pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/177 "2008-06-10T17:02:04Z")

</div>

it will shock me to if its dead well see soon can anyone say 408 stroker ;D…

---

<div class="post-metadata">

**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\
**Post date:** [June 10, 2008, 5:03pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/178 "2008-06-10T17:03:10Z")

</div>

ya gotta have the throttle plates open on a comp test not closed and the cyl could of benn washed from before it dont take much

---

<div class="post-metadata">

**Author:** ![Auto0utcast](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/auto0utcast/32/6281_2.png) [@Auto0utcast](https://forums.speedlife.net/u/Auto0utcast)\
**Post date:** [June 10, 2008, 5:04pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/179 "2008-06-10T17:04:30Z")

</div>

dead slugs suck… sorry homie. northstar or allstar are ur logical choices… OEM block should be just fine. no need to go building something out of pocket YET if theres a chance of them warranty-ing it.

---

<div class="post-metadata">

**Author:** ![tdi\_logik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tdi_logik/32/6310_2.png) [@tdi\_logik](https://forums.speedlife.net/u/tdi_logik)\
**Post date:** [June 10, 2008, 5:05pm UTC](https://forums.speedlife.net/t/the-new-rims/237224/180 "2008-06-10T17:05:20Z")

</div>

> [@SSmokinn SS](#):
>
> I pulled out the injector fuses when I did the compression test…so it cant be washed out?
> 
> Even started the car with the compression tester still hooked up to cylinder 5 and let it run for about 45 seconds…stopped right at 55 and didnt budge

ughh, u must be devastated… new car, not havin any issues… i hope the dealer doesn’t give ya any shit. there known to do that.

[Previous page](https://forums.speedlife.net/t/the-new-rims/237224.md?page=8)

[Next page](https://forums.speedlife.net/t/the-new-rims/237224.md?page=10)