|
03-03-2012
|
#1 |
|
Join Date: Feb 2008
Location: Vancouver, BC
Posts: 251
|
Intermittent SES
I have had an intermittent SES problem for a while now - I hoped it would go away when I fixed problem with my throttle body. The throttle body rebuild fixed my Idle problem and IAC - but not my SES problem.
The SES light will go on for about 10 seconds, then go off, only while driving, and only while decellerating (no throttle). It does not show as a trouble code on my Auto-Xray 6000 scanner. Does anyone have any suggestions / experience on how I might capture what is triggereing the SES? - I was thinking that a PC based scanner might do the trick? I really hate to admit defeat and have to take it into a professional shop that has the GM scanner tools.... |
|
|
|
03-03-2012
|
#2 | |
 Join Date: Aug 2006
Location: McLean, VA
Posts: 3,718
|
Re: Intermittent SES
Quote:
What you might do is disconnect the battery, let it sit for 20-30 seconds and reconnect. I believe this starts the learning sequence. |
|
|
|
|
|
03-03-2012
|
#3 |
  
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,624
|
Re: Intermittent SES
o2 sensors
__________________
It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
|
|
|
|
03-03-2012
|
#4 |
Join Date: Dec 2003
Location: Arcadia, OK
Posts: 3,394
|
Re: Intermittent SES
Anytime an SES occurs, a diagnostic code is stored. Pull the codes & see what you have. Try retreiving them by jumping the pins in the OBD port & read on the inst panel display. Always start with the lowest numerical code first. Fix that & any other numerically higher codes are usually cured. I have no idea why your scanner isn't retreiving the code.
__________________
Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. Last edited by A26B; 03-03-2012 at 11:04 PM. |
|
|
|
|
03-04-2012
|
#5 |
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,120
|
Re: Intermittent SES
Use the paperclip method and pull the codes. They should be stored reguardless if the SES goes out.
However the AutoXray 6000 should see these codes as well. If it isnt im not sure if a Tech1 will see them. Last intermittent code I use to see once in a while was a Cam Sensor fault
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 03-04-2012 at 01:30 AM. |
|
|
|
|
03-04-2012
|
#6 |
|
Join Date: Feb 2008
Location: Vancouver, BC
Posts: 251
|
Re: Intermittent SES
Thanks for your help guys, I had a brain cramp and forgot all about the paperclip (which is what I used before I got a scanner).
My ECM is showing a code 24 - which I had last year (along with various other idle issues). I did some more digging on code 24, apparently it is set when ... "Vehicle speed was 0 MPH when engine speed was between 900 and 4400 RPM and throttle position angle was less than 2% for 4 seconds" - which is exactly my situ - only happens in motion on decelleration. The VSS sensor looks painful to replace if you don't have a lift - I may buy the sensor and new tranny fluid and take it to a local shop. |
|
|
|
|
03-04-2012
|
#7 | |
|
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,120
|
Re: Intermittent SES
Quote:
Im not sure but I think the ZFDOC has a tool to make that a little easier. GC
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
|
|
|
|
|
03-04-2012
|
#8 |
|
Join Date: Feb 2008
Location: Vancouver, BC
Posts: 251
|
Re: Intermittent SES
Thanks GC - I'll check that out....
|
|
|
|
|
03-05-2012
|
#9 |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,609
|
Re: Intermittent SES
I thought the VSS's for the '90 Z's were NLA?
I remember awhile back RockAuto had some that they were clearing out of their inventory and I ordered one for my 90. They called me on the phone to tell me that they were sure the VSS they were selling would not work for a 90 Z. I dropped looking after that and didn't ever verify that they had the story straight.   Tom
__________________
1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
|
|
|
|
03-05-2012
|
#10 |
|
Join Date: Feb 2008
Location: Vancouver, BC
Posts: 251
|
Re: Intermittent SES
Tom
I believe that rumours of the death of the 1990 VSS are just that. I believe the VSS for post-90 cars is different. I believe the 90 VSS is Standard Motor Products SC6 - just like this one... http://www.ebay.com/itm/SC6-Speed-Se...a82c83&vxp=mtr If not - I just ordered the wrong part.... Glenn |
|
|
|
 |
|
|
Linear Mode
