2.3 turbo Problems
Forums at Modded Mustangs
Home Register FAQ Members List Calendar Timeslips Blogs Garage Gallery Auto Loans Search Today's Posts Mark Forums Read Auto Escrow


Go Back   Forums at Modded Mustangs > Mustang Forums > 2.3 Mustangs

ModdedMustangs.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old September 8th, 2008, 09:08 PM   #1
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

2.3 turbo Problems


Okay I have been reading this forum and a few other trying to figure out some answers to my problems. So here's the story, I have a 1986 SVO motor i put into my sand rail, I had MSII installed and tuned by a local shop, Everything was running fine for a week or so, but then it started running rough. I started with plugs and wires, no change. Moved on to the cap and router, still no change. I drained the fuel changed the pump to a new 225gph inline pump, fuel pressure is 40psi at idle. Also I checked the timing and set it at 10#, the MSII says 18# advanced timing? im not familiar with MS. I changed the manifold gasket and turbo gasket. well now it idles smooth well atleast better than it was but it wont rev past 3800-4000 rpm. So i thought that it might have been the ignition module, changed that no change. So after all this changing and swapping of parts it still doesnt run right. It will build 10psi of boost(supposed to be 20psi) and then cuts out and backfires and shudders at 3800 rpm, where should i look next?
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old September 8th, 2008, 11:13 PM   #2
Regular
 
1988 Mustang LX 2.3T
 
Join Date: Jun 2007
Location: Brandon, FL
Posts: 368
akatagyourit is on a distinguished road
iTrader: 0 reviews
Default

I'd say incorrectly gapped plugs, possibly incorrect temp plugs, or possibly just to much gas. What kinda plugs are you running? I'll check my base fuel pressure tomorrow after work and let you know what mine is with the vacuum line unplugged and plugged. It might also not be enough timing. With mine set at a base of 10 with the spout out, when I plug it in I believe it goes from 20 and up pending on the rpm range. Wait for TurboLX to post though, he knows more about these things than I do.
__________________
Originally Posted by Hourofpain
If i put flowmasters on my lawn mower will it sould like a gt?
  Reply With Quote Quick reply to this message
Old September 8th, 2008, 11:59 PM   #3
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

I just checked cam timing and it looks to be good. I have been looking around on the harness and it looks like the shop that wired the MSII up didnt leave this "spout" wire there, If someone could tell me where it leads to i can try to track it down. also im running NGK TR5's gapped at .32, im gonna try dropping them to .28 to see if that makes any difference. Also keep in mind the tune was good and it ran awsome untill what i thought fould a plug. Im about to pull my hair out. And also there is no knock sensor as i have a custom upper and its been removed,
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 12:14 AM   #4
Regular
 
91 mustang lx coupe
way too slow
 
Join Date: Aug 2008
Location: Denton Tx
Posts: 147
thatdavidkid is on a distinguished road
iTrader: 0 reviews
Send a message via AIM to thatdavidkid Send a message via Yahoo to thatdavidkid
Default

silly question but are you running cats of some type? 'cause that's what it sounds like... clogged cat... or something of that nature... also, check your vain air meter... make sure it's putting out good signals.
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 12:42 AM   #5
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

no cats. And No VAM. It does use a map sensor in the ms
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 03:03 PM   #6
I Post Entirely Way Too Much
 
TurboLX's Avatar
 
1988 Mustang LX Turbo
 
Join Date: Oct 2006
Location: NY
Posts: 8,781
Blog Entries: 1
TurboLX has a spectacular aura aboutTurboLX has a spectacular aura about
iTrader: 0 reviews
Send a message via AIM to TurboLX
Default

idk why you had a MSII installed first off, unless your pushing over 500hp in the 2.3 then theres no need for it, the LA3 flashed can do you good to 400-450hp.

MegaSquirt - Electronic Fuel Injection Computer by Bowling & Grippo * * 2005
__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 03:06 PM   #7
I Post Entirely Way Too Much
 
TurboLX's Avatar
 
1988 Mustang LX Turbo
 
Join Date: Oct 2006
Location: NY
Posts: 8,781
Blog Entries: 1
TurboLX has a spectacular aura aboutTurboLX has a spectacular aura about
iTrader: 0 reviews
Send a message via AIM to TurboLX
Default

whats your reading at the vRef?

an are you using the crank trigger with TFI setup?

whats your general settigs at now? did you change them?
__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 04:26 PM   #8
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

well the local shop said that this was the best thing to do, and I am new to efi stuff so I listened to there advice. Also I'm not sure what the settings are I will take a look tonight. I'm not yet familiar with ms so some explaination may be needed
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 04:47 PM   #9
I Post Entirely Way Too Much
 
TurboLX's Avatar
 
1988 Mustang LX Turbo
 
Join Date: Oct 2006
Location: NY
Posts: 8,781
Blog Entries: 1
TurboLX has a spectacular aura aboutTurboLX has a spectacular aura about
iTrader: 0 reviews
Send a message via AIM to TurboLX
Default

download there PDF manual.

there talked you into something you dont even need
__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 06:33 PM   #10
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

Well here's a thought, why would the tune be off when it was not ever changed? And it ran great before
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 10:33 PM   #11
I Post Entirely Way Too Much
 
TurboLX's Avatar
 
1988 Mustang LX Turbo
 
Join Date: Oct 2006
Location: NY
Posts: 8,781
Blog Entries: 1
TurboLX has a spectacular aura aboutTurboLX has a spectacular aura about
iTrader: 0 reviews
Send a message via AIM to TurboLX
Default

it happens, if you have a manual boost controller then it problably adjusted itself an turned the boost up or down.

take it back to the guys who installed it an talk to them
__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 11:12 PM   #12
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

it doesn't have a boost controller. I will see if I can find somone else local to take a look at it, I didn't have a pleasant expirience with the shop that installed the ms.
  Reply With Quote Quick reply to this message
Old September 9th, 2008, 11:19 PM   #13
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

Also I pulled the new plugs to see what they look like, cyl 1 and 2 are a orange/tan color and 3 was still clean with a little black,4 looked clean and new, and yes they are all firing at idle and up to 4k rpm, also changed gap to .28 with no change
  Reply With Quote Quick reply to this message
Old September 10th, 2008, 09:18 PM   #14
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

ok well i finally tracked the problem down, cyl 3 and 4 are wired to injector driver 2 in MS, Apparently i have a bad driver because its not pulsing, both sides are powered on the injector and stay that way, Anyone know how to fix this?
  Reply With Quote Quick reply to this message
Old September 10th, 2008, 11:10 PM   #15
I Post Entirely Way Too Much
 
TurboLX's Avatar
 
1988 Mustang LX Turbo
 
Join Date: Oct 2006
Location: NY
Posts: 8,781
Blog Entries: 1
TurboLX has a spectacular aura aboutTurboLX has a spectacular aura about
iTrader: 0 reviews
Send a message via AIM to TurboLX
Default

how do you have the injectors setup on the settings?

do you have in sequential or non sequential?
__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.
  Reply With Quote Quick reply to this message
Old September 11th, 2008, 12:00 AM   #16
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

sequential I believe but I will have to check tomorrow. I just wired all of them to inj1 and it runs great again but I still want to fix it correctly
  Reply With Quote Quick reply to this message
Old September 11th, 2008, 08:59 PM   #17
Newbie
 
 
Join Date: Sep 2008
Posts: 18
Smoked is on a distinguished road
iTrader: 0 reviews
Default

well it quit working again, i think it burned the injector drivers up,
what are th impedance of stock SVO injectors?
  Reply With Quote Quick reply to this message
Old September 11th, 2008, 10:47 PM   #18
I Post Entirely Way Too Much
 
TurboLX's Avatar
 
1988 Mustang LX Turbo
 
Join Date: Oct 2006
Location: NY
Posts: 8,781
Blog Entries: 1
TurboLX has a spectacular aura aboutTurboLX has a spectacular aura about
iTrader: 0 reviews
Send a message via AIM to TurboLX
Default

hmm not to sure, there low impendance thats for sure, ill have to check what they are
__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.
  Reply With Quote Quick reply to this message
Old September 16th, 2008, 12:38 PM   #19
Authorized Vendor
 
Matt Cramer's Avatar
 
 
Join Date: Sep 2008
Location: Covington, GA
Posts: 429
Matt Cramer is on a distinguished road
iTrader: 0 reviews
Default

For those following along, we've been in contact on other forums and this one turned out to be physical damaged to the injector drivers.
  Reply With Quote Quick reply to this message
Old September 16th, 2008, 02:26 PM   #20
I Post Entirely Way Too Much
 
TurboLX's Avatar
 
1988 Mustang LX Turbo
 
Join Date: Oct 2006
Location: NY
Posts: 8,781
Blog Entries: 1
TurboLX has a spectacular aura aboutTurboLX has a spectacular aura about
iTrader: 0 reviews
Send a message via AIM to TurboLX
Default

ahh that explains it, this one had me stumped
__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Forums at Modded Mustangs forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools


Threads Similar to: 2.3 turbo Problems
Thread Thread Starter Forum Replies Last Post
Turbo timers and Boost Controllers? Turbo guys where you at? 95StangSVT General Tech 14 July 11th, 2008 07:01 AM
Hellion Turbo Tuning Problems wadman 2005 - 2010 11 November 20th, 2007 06:42 PM
Supercharger, Twin Turbo, and Single Turbo justinsstang General Tech 24 March 7th, 2007 09:07 PM
Mellon's Twin Turbo Stealth vs Wills99z's Single Turbo z28 Mellon Videos 10 December 30th, 2006 10:05 AM
Super Charger vs Turbo/Twin Turbo: Pros and Cons of each FireryDriver 2005 - 2010 9 September 17th, 2006 04:15 PM



All times are GMT -4. The time now is 07:07 AM.
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company.
Forum is powered by vBulletin ©2000 - 2014, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.

powered by vBulletin ©2000 - 2014, Jelsoft Ent. Ltd.