Forum Register TCG Mobile Casino Live Posting Feed Garage Arcade Members List Calendar Search Today's Posts Mark Forums Read
Go Back   The Chicago Garage > The Garage > Automotive Discussions > 3800 Discussion

User Tag List

Like Tree15Likes

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 02-04-2016, 07:10 AM   #1
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default Turbo 3800 issues

Kinda stumped, had this issue once before under similar circumstances but it "fixed itself" fairly quickly.

Went through some standing water, it wasn't deep enough for the motor to ingest it, but enough for it to cause the belt to slip for about a minute, at most, leaving the voltage hanging around 11.30. The belt dried off, voltage came back and now since then under idle or low throttle input the car runs so lean it either idles like shit (when warmed up) or dies out (when it's cold). Under any throttle input beyond (I'm guessing here) 20% it acts like normal but below that it starts to lean out per my Wideband and struggle. It seems once it's warmed up that it's back to normal but a cold start it's just a huge pain in the ass.

My tune does need work since I installed the 80's and the only new to me code I saw was about bank 1 sensor 1 O2 sensor. I reset the codes but nothing has tripped in my short time driving it besides random multiple misfire. I always had a system too lean or maybe rich which I equated to needing a retune since it only came when I added the 80's. If need be I can put the 42.5lbers back on and the tune zzp sent me home with as I never had any issues with it but the car has been running decently this way, just not ideal of course.

Is the MAF taking a shit? oxygen sensor? MAP? I just don't get how that water ok the belt situation correlates. I didn't see any vacuum leaks and all vacuum lines look fine. I haven't changed anything under hood either. Maybe the fuel pump?
__________________
12 Tahoe PPV
04 Grand Prix GTP Comp G - Turbo'd
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 07:21 AM   #2
 
98GrandPrixIraqVet's Avatar
 
Join Date: Jan 2015
Location: Nowheresville North Dakota
Posts: 13,815
Casino cash: $125371500
8.44 per day
Default

sounds like a MAF to me. my retarded car on e85 60# injectors with the s1x cam seems to eat MAFs i dont know why but ive gone through like 3. same thing stumbles misfires and idles like hell.

ive had to ride the gas to keep it from dying and limp it to a parts store. lucky it wasnt far lol knew it was the 2nd time maf again got to napa checked the codes from aero force sure is shit. forget which code at the moment.

thats where id start anyways.

ohh i should add i keep a junk yard spare under my arm rest along with a small pencil type bit driver lol.

known problem happened a few times might as well roll prepared. #3800strugglesarereal
98GrandPrixIraqVet is offline   Reply With Quote
Old 02-04-2016, 07:26 AM   #3
Harbor Master
 
Yaj Yak's Avatar
 
Join Date: May 2007
Posts: 87,868
Casino cash: $144279000
19.79 per day
Default

wait. did you actually tune for 80lb injectors or did you just connect them.
__________________
01 525i
01 turbo pricks
13 gas 3500hd cclb

Quote:
Originally Posted by Outlaw View Post
TCG: We pull vanity fair models in our F150ís because Teslaís are unsafe.
Yaj Yak is offline   Reply With Quote
Old 02-04-2016, 07:30 AM   #4
 
98GrandPrixIraqVet's Avatar
 
Join Date: Jan 2015
Location: Nowheresville North Dakota
Posts: 13,815
Casino cash: $125371500
8.44 per day
Default

lol kind of confusing but i can see going from 42s to 80# injectors basically confusing your maf.

maf demands this much fuel for 42s per the tune toss 80s in and maf is going to go

how far off it will be but maf and injector size are most definitely related.....
98GrandPrixIraqVet is offline   Reply With Quote
Old 02-04-2016, 07:30 AM   #5
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default

Quote:
Originally Posted by Yaj Yak View Post
wait. did you actually tune for 80lb injectors or did you just connect them.

I changed the injector tables for them, however since adding them the idle has run rich.. BUT I added the Wideband when I added the injectors so not sure what everything looked like straight from ZZP. Injectors with the tables modified have been in the car roughly 8 months.
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 07:31 AM   #6
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default

Quote:
Originally Posted by 98GrandPrixIraqVet View Post
sounds like a MAF to me. my retarded car on e85 60# injectors with the s1x cam seems to eat MAFs i dont know why but ive gone through like 3. same thing stumbles misfires and idles like hell.

ive had to ride the gas to keep it from dying and limp it to a parts store. lucky it wasnt far lol knew it was the 2nd time maf again got to napa checked the codes from aero force sure is shit. forget which code at the moment.

thats where id start anyways.

ohh i should add i keep a junk yard spare under my arm rest along with a small pencil type bit driver lol.

known problem happened a few times might as well roll prepared. #3800strugglesarereal

LT1 MAF sensor, back from when the whole setup was in the other 04. So it's probably 8/9 years old.
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 07:32 AM   #7
Harbor Master
 
Yaj Yak's Avatar
 
Join Date: May 2007
Posts: 87,868
Casino cash: $144279000
19.79 per day
Default

not to doubt your abilities at all whatsoever, but are you 100% certain you changed the tables correct?
Yaj Yak is offline   Reply With Quote
Old 02-04-2016, 07:33 AM   #8
 
98GrandPrixIraqVet's Avatar
 
Join Date: Jan 2015
Location: Nowheresville North Dakota
Posts: 13,815
Casino cash: $125371500
8.44 per day
Default

yeah i think id start by replacing that maf......
98GrandPrixIraqVet is offline   Reply With Quote
Old 02-04-2016, 07:34 AM   #9
Harbor Master
 
Yaj Yak's Avatar
 
Join Date: May 2007
Posts: 87,868
Casino cash: $144279000
19.79 per day
Default

yeah but why.

i dont like that idea.
Yaj Yak is offline   Reply With Quote
Old 02-04-2016, 07:35 AM   #10
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default Turbo 3800 issues

Quote:
Originally Posted by Yaj Yak View Post
not to doubt your abilities at all whatsoever, but are you 100% certain you changed the tables correct?

No lol.. I made a thread about it on here and changed them. I mean other than idle being rich it ran fine.

However I don't think this is my super lean problem as this problem just started two days ago where as the injectors and modified tables were done 8 months ago.
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 07:36 AM   #11
 
98GrandPrixIraqVet's Avatar
 
Join Date: Jan 2015
Location: Nowheresville North Dakota
Posts: 13,815
Casino cash: $125371500
8.44 per day
Default

replacing the maf? because despite the parts hes changed and things he has modded this specific issue is recent and wasnt doing it right after the 80s were put in.

the symptoms in post #1 still make me think maf hell ive experienced same thing multiple times my car eats mafs faster than i can make a set of tires go bald lol.....
98GrandPrixIraqVet is offline   Reply With Quote
Old 02-04-2016, 07:37 AM   #12
 
1quick's Avatar
 
Join Date: Jan 2008
Location: coal city
Posts: 19,309
Casino cash: $142947447
4.61 per day
Default

have you data logged with you scanner? Should tell you if it's the maf or something else
Yaj Yak likes this.
__________________
2016 GT 5.slow
1quick is offline   Reply With Quote
Old 02-04-2016, 07:41 AM   #13
Harbor Master
 
Yaj Yak's Avatar
 
Join Date: May 2007
Posts: 87,868
Casino cash: $144279000
19.79 per day
Default

Quote:
Originally Posted by 98GrandPrixIraqVet View Post
replacing the maf? because despite the parts hes changed and things he has modded this specific issue is recent and wasnt doing it right after the 80s were put in.

the symptoms in post #1 still make me think maf hell ive experienced same thing multiple times my car eats mafs faster than i can make a set of tires go bald lol.....
that's not "right" though... like that shouldn't be happening you have some other problem.

Quote:
Originally Posted by 1quick View Post
have you data logged with you scanner? Should tell you if it's the maf or something else
this.
Yaj Yak is offline   Reply With Quote
Old 02-04-2016, 07:44 AM   #14
 
98GrandPrixIraqVet's Avatar
 
Join Date: Jan 2015
Location: Nowheresville North Dakota
Posts: 13,815
Casino cash: $125371500
8.44 per day
Default

i dont get why ive gone through 3 either. who knows every single time its thrown same code exact same symptoms. but yeah getting 3 junk mafs or mafs that dont last very long is pretty absurd.

for all i know at the moment that car may be getting a different engine when i get home. less than a month and ill be back stateside SOON!

not to derail but im trying to see if my shit runs before
98GrandPrixIraqVet is offline   Reply With Quote
Old 02-04-2016, 07:54 AM   #15
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default

Quote:
Originally Posted by 1quick View Post
have you data logged with you scanner? Should tell you if it's the maf or something else

Problem is the laptop I used with powrtuner died so I haven't been able to. I'm trying to acquire one but the last time I really messed with powrtuner besides changing the injector tables was YEARS ago. I've gotten dumber since then
1quick likes this.
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 08:16 AM   #16
Welllllllllll ya knowwwwwww.....
 
Turbocharged400sbc's Avatar
 
Join Date: Jun 2007
Location: hangover park IL
Posts: 26,499
Casino cash: $46588000
6.00 per day
Default

You may have water contamination of the atmospheric side of the o2 sensor.
PANDA and ktraver97ss like this.
__________________
Double D Racing: Over-engineered and under-funded
Schlimbuilt: 32 orders of magnitude above "good enough"
https://drive.google.com/file/d/15tJ...ew?usp=sharing
04 GTP clone, a nice heap
84 Cressida waGN 3800jz-gte swapped scrap pile
68 F250 camper special 390fe/np435/d60...EFI 460/5spd ZF someday
94 Olds 442 (462ci-4wd-2 engines) new chassis underway... L67/4t80e^[email protected]
Quote:
Originally Posted by Wolfman View Post
3800>all other technology ever
Turbocharged400sbc is offline   Reply With Quote
Old 02-04-2016, 08:20 AM   #17
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default

Quote:
Originally Posted by Turbocharged400sbc View Post
You may have water contamination of the atmospheric side of the o2 sensor.

Dumb people lingo please? I was kind of thinking maybe something to do with the o2 sensor, but it sits high up on the z7 kit however I'm not going to rule anything out.
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 08:54 AM   #18
Welllllllllll ya knowwwwwww.....
 
Turbocharged400sbc's Avatar
 
Join Date: Jun 2007
Location: hangover park IL
Posts: 26,499
Casino cash: $46588000
6.00 per day
Default

How many miles on it?
Turbocharged400sbc is offline   Reply With Quote
Old 02-04-2016, 08:56 AM   #19
 
b4black's Avatar
 
Join Date: Jun 2008
Location: Oswego
Posts: 1,042
Casino cash: $18250000
0.26 per day
Default

The o2 sensor compares the "exhaust air" to the "outside air" and reports the difference. The outside of the sensor is open to the air and water can get in, confusing the shit out it.


Take a look at the picture on the top right.
How does the oxygen sensor work
__________________
2013 Lincoln MKS 3.5 Ecoboost
2002 Buick Regal GS (Sold-3800 Alumnus)
1996 Dodge Ram - Cummins 12 Valve - 4x4
1982 Buick Grand National x2
1965 Hemi Barracuda - Richard Petty's 43 JR drag car
b4black is offline   Reply With Quote
Old 02-04-2016, 08:57 AM   #20
Welllllllllll ya knowwwwwww.....
 
Turbocharged400sbc's Avatar
 
Join Date: Jun 2007
Location: hangover park IL
Posts: 26,499
Casino cash: $46588000
6.00 per day
Default

With both the o2 n maf being trusted sensors it's really a matter of just replacing the cheaper one to see if the problem goes away. with a good Denso sensor being $40 it's the cheaper first diagnostic step over the mass airflow sensor. Tho it would help to make sure that the filaments are clean with a q-tip and rubbing alcohol.
98GrandPrixIraqVet likes this.
Turbocharged400sbc is offline   Reply With Quote
Old 02-04-2016, 09:03 AM   #21
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default

Quote:
Originally Posted by Turbocharged400sbc View Post
How many miles on it?

Would have to guess around 50k now. Definitely due I'm sure. I'll order one. Either way it should be done.
Turbocharged400sbc likes this.
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 09:09 AM   #22
I say what everyone thinks
 
ktraver97ss's Avatar
 
Join Date: Aug 2007
Location: Roselle, IL
Posts: 13,446
Casino cash: $30001213
3.10 per day
Default

Funny you say that its been doing this since the water. I remember going through a few non-so-deep areas of water on the road last summer with the turbonnie and it stumbled terribly. No lasting issues popped up, but I thought it was weird, it would like almost die. I just try to avoid going through any standing water now.
__________________
ktraver97ss is offline   Reply With Quote
Old 02-04-2016, 09:17 AM   #23
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default

Quote:
Originally Posted by ktraver97ss View Post
Funny you say that its been doing this since the water. I remember going through a few non-so-deep areas of water on the road last summer with the turbonnie and it stumbled terribly. No lasting issues popped up, but I thought it was weird, it would like almost die. I just try to avoid going through any standing water now.

NEVER AGAIN. It did this one other time when I went through a similar not so deep area, but cleared it self up relatively quickly. Otherwise since going turbo 15k ago it's been nothing short of amazing never skipping a beat.
ktraver97ss likes this.
SaturdaysGS is offline   Reply With Quote
Old 02-04-2016, 09:24 AM   #24
Welllllllllll ya knowwwwwww.....
 
Turbocharged400sbc's Avatar
 
Join Date: Jun 2007
Location: hangover park IL
Posts: 26,499
Casino cash: $46588000
6.00 per day
Default

Replace o2 dummy
Turbocharged400sbc is offline   Reply With Quote
Old 02-04-2016, 09:32 AM   #25
 
SaturdaysGS's Avatar
 
Join Date: Jul 2007
Location: Chicago (Southside)
Posts: 4,091
Casino cash: $15223818
0.93 per day
Default

Quote:
Originally Posted by Turbocharged400sbc View Post
Replace o2 dummy

Ordered a Denso from Amazon, replacing it tomorrow. Will report back.
SaturdaysGS is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 09:21 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0
User Alert System provided by Advanced User Tagging v3.0.6 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
no new posts