EGR Hell - Page 2 - Suzuki Forums: Suzuki Forum Site
Suzuki Forum Suzuki Forums

» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   Suzuki Forums: Suzuki Forum Site > Suzuki Models > Suzuki Sidekick, Escudo, Vitara, Geo, X-90 & Tracker Forum (1989-1998)
Register Home Forum Active Topics Photo Gallery Garage Search Today's Posts Mark Forums Read Auto EscrowAuto LoansInsurance

Suzuki-Forums.com is the premier Suzuki All Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 03-20-2017, 03:46 PM   #11 (permalink)
Veteran
 
ranger88den's Avatar
 
Join Date: May 2006
Location: NW Ohio
Posts: 3,715
Gallery: 0
ranger88den is an unknown quantity at this point
Default

Javier, when I go to your profile you only list your vehicle as a '94. What make is your vehicle? What is your location? Have you checked the rest of the exhaust system for restriction, eg catcon?
__________________
1997 Geo Tracker, 2dr convertible/hardtop, 1.6, 16v, 5 spd manual, 4wd
1995 Geo Tracker, 2dr convertible/hardtop, 1.6, 16v, 3 spd auto, 4wd
1992 Geo Tracker LSI, 2 dr convertible, 1.6, 8v, 5 spd manual, 4wd
1991 Geo Tracker, 2dr hardtop (TT), 1.6, 8v, 3 spd auto, 4wd

1989 Ford E-250, van, 5.0 (302), 4 spd auto
1988 Ford Ranger, p/u, 2.9, 3pd auto

Last edited by ranger88den; 03-20-2017 at 03:51 PM.
ranger88den is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-20-2017, 04:52 PM   #12 (permalink)
Member
 
lifesawrench's Avatar
 
Join Date: Sep 2016
Posts: 26
Gallery: 0
lifesawrench is on a distinguished road
Default

Sorry for the missing info, Ill update it, but here it is real quick: Hard Top Sidekick 94, Cammy (made in Canada for US market) located in Puerto rico. No I have not checked the rest of the exhaust. What should I be looking for? I believe my Catcon is still good. How to troubleshoot it if in doubt?

Cheers!!
__________________
Hard Top Sidekick 94, CAMI made
16V 1.6L 4 Door
4 Speed A/T
lifesawrench is offline   Reply With Quote Quick reply to this message
Old 03-20-2017, 07:08 PM   #13 (permalink)
Bex
Section Moderator
 
Bex's Avatar
 
Join Date: Mar 2008
Location: Ireland
Posts: 21,284
Gallery: 0
Bex is on a distinguished road
Default

Just to give you a bit of guidance, a code 51 is thrown for one of two reasons, either:
The engine coolant is less than 140F but exhaust gas is greater than 428F, or the engine coolant is equal or greater than 158F and the intake air temp is equal or greater than 122F. You advised that you don't have a vacuum pump - perhaps you should check to see if the diaphragm will actually move if vacuum is applied to it??
__________________
'91 Tracker 8V, 1.6L, 5 sp, 4wd, 2dr, conv, CAMI, horribly rusty
'97 Suzuki Vitara 8v, parts car - worth its weight in gold.....
'61 NSU Quickly - 150mpg
Bex is offline   Reply With Quote Quick reply to this message
 
Old 03-21-2017, 12:26 AM   #14 (permalink)
Member
 
lifesawrench's Avatar
 
Join Date: Sep 2016
Posts: 26
Gallery: 0
lifesawrench is on a distinguished road
Default

Thanks Bex. Well if volts and ohms are accurate, then ECT is reading right coolant temp, right? Or can there be a margin of error? Hot engine ect ohms are 271 and volts .64v.

About the air temp how can I validate/check that? Does Rad flow has to do with this?
If temp is reaching 180 (which looks like it) could the T-stat be defective anyways? I still have not troubleshoot that yet, but its only about 2 years old. I have the 195F one.
__________________
Hard Top Sidekick 94, CAMI made
16V 1.6L 4 Door
4 Speed A/T
lifesawrench is offline   Reply With Quote Quick reply to this message
Old 03-21-2017, 06:27 AM   #15 (permalink)
Bex
Section Moderator
 
Bex's Avatar
 
Join Date: Mar 2008
Location: Ireland
Posts: 21,284
Gallery: 0
Bex is on a distinguished road
Default

The computer is getting temps off of various systems. Your ECT may be giving the correct ohms, but the little temperature probe in the EGR valve may not be giving the correct voltage. It's the thermoprobe in the EGR that communicates with the ECU, for the EGR circuit/code 51.
__________________
'91 Tracker 8V, 1.6L, 5 sp, 4wd, 2dr, conv, CAMI, horribly rusty
'97 Suzuki Vitara 8v, parts car - worth its weight in gold.....
'61 NSU Quickly - 150mpg
Bex is offline   Reply With Quote Quick reply to this message
Old 03-21-2017, 06:58 AM   #16 (permalink)
Member
 
lifesawrench's Avatar
 
Join Date: Sep 2016
Posts: 26
Gallery: 0
lifesawrench is on a distinguished road
Default

Yes I forgot. The Thermoprobe ohms are as low as 12.6 when put on boiling water, but only 34.5 when I opened EGR main to let exhaust in (of course car shuts off). I dont know the volts that the thermoprobe should have cold/hot or at any temp.
__________________
Hard Top Sidekick 94, CAMI made
16V 1.6L 4 Door
4 Speed A/T
lifesawrench is offline   Reply With Quote Quick reply to this message
Old 03-21-2017, 09:16 AM   #17 (permalink)
Bex
Section Moderator
 
Bex's Avatar
 
Join Date: Mar 2008
Location: Ireland
Posts: 21,284
Gallery: 0
Bex is on a distinguished road
Default

The factory spec ohms across the connector, on the sensor side of the harness, are usually taken when the engine is fully warmed up. The boiling water test is somewhat meaningless, as you need to backprobe while attached to the circuit. When the engine is cold, the spec is about 40k ohms, and when warmed up, its about 10k. You can also check the voltage for the thermoprobe itself, by disconnecting the connector, having the key on, and checking for voltage on the ECU side of the connector. You should have about 5v. If less, then it's time to start looking at wiring.....By the way, if you are pushing the valve forward, and your engine is stumbling or shutting down, it usually indicates that the passages are clear enough.
__________________
'91 Tracker 8V, 1.6L, 5 sp, 4wd, 2dr, conv, CAMI, horribly rusty
'97 Suzuki Vitara 8v, parts car - worth its weight in gold.....
'61 NSU Quickly - 150mpg
Bex is offline   Reply With Quote Quick reply to this message
Old 03-21-2017, 11:34 AM   #18 (permalink)
Member
 
lifesawrench's Avatar
 
Join Date: Sep 2016
Posts: 26
Gallery: 0
lifesawrench is on a distinguished road
Default

Well, if measured on car letting it get hot by moving egr main by hand the lowest it went was 34.7k ohms(I can retests to be sure). My boiling water test was to make sure it went below that number and it did, 12.6K. Cause if even when put in hot boiling water if it stayed the same, then it could indicate a no good thermoprobe or not necessarily?. Cold mine is not 40k, it is between 200-300k range. Will have to check volts, which I still have not. And yes my guess is not blocked passages, as IM was cleaned right before engine rebuild (december) and about 2 weeks ago again.

Thanks!!
__________________
Hard Top Sidekick 94, CAMI made
16V 1.6L 4 Door
4 Speed A/T
lifesawrench is offline   Reply With Quote Quick reply to this message
Old 03-22-2017, 06:07 AM   #19 (permalink)
Bex
Section Moderator
 
Bex's Avatar
 
Join Date: Mar 2008
Location: Ireland
Posts: 21,284
Gallery: 0
Bex is on a distinguished road
Default

My point was that when you put the thermoprobe in boiling water, you are taking it out of the circuit that you wish to test.....if you just have the car at warm running temp, and it's idling, what is the reading (without touching the diaphragm)??
__________________
'91 Tracker 8V, 1.6L, 5 sp, 4wd, 2dr, conv, CAMI, horribly rusty
'97 Suzuki Vitara 8v, parts car - worth its weight in gold.....
'61 NSU Quickly - 150mpg
Bex is offline   Reply With Quote Quick reply to this message
Old 03-22-2017, 07:07 AM   #20 (permalink)
Member
 
lifesawrench's Avatar
 
Join Date: Sep 2016
Posts: 26
Gallery: 0
lifesawrench is on a distinguished road
Default

Yes it was reading but I dont remember the omhs. Let me retest.

Good day!!
__________________
Hard Top Sidekick 94, CAMI made
16V 1.6L 4 Door
4 Speed A/T
lifesawrench is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  Suzuki Forums: Suzuki Forum Site > Suzuki Models > Suzuki Sidekick, Escudo, Vitara, Geo, X-90 & Tracker Forum (1989-1998)

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Suzuki Forums: Suzuki Forum Site forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
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:
Insurance
Please select your insurance company (Optional)
Date of Birth
Your date of birth and age are displayed in several places on the forum. Only the administrator will have access to your date of birth should you choose to hide it via the privacy option below.
Month Day Year
     
Privacy

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not 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


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 07:41 PM.



Powered by vBulletin® Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.