CCCUK logo

 Adrian Flux

Website Control

Recent threads

New Forum Posts

» AC belt by corvetteville on Thu 18 Oct 18 17:55

» Spec lists by kentvette on Thu 18 Oct 18 16:41

» Silverstone Classic 2019 by CrispyCleen on Thu 18 Oct 18 15:37

» Birdcage repair by johng on Thu 18 Oct 18 12:49

» Strange tacho by kentvette on Thu 18 Oct 18 12:44

» What did you do with your Vette today? by FIVE RED on Thu 18 Oct 18 12:25

» A trio of C2 owners. by yenko 1969 on Wed 17 Oct 18 20:24

» C3 Hooker Side Pipe headers by icandycanvas on Wed 17 Oct 18 16:18

» C3 Side Exhaust Pipes by icandycanvas on Tue 16 Oct 18 20:52

» Wiper actuator on a 69L by Ddave on Tue 16 Oct 18 18:36

» Le Mans 2019 by kentvette on Tue 16 Oct 18 17:55

» Tips by CaptainK on Tue 16 Oct 18 13:44

» Im interested in a C5 Z06 (this time next year) by Benbay001 on Tue 16 Oct 18 12:55

» Engine cutting out after firing up by Firepit on Tue 16 Oct 18 09:19

» Thinking About Hanging Them Up....... by Norm on Mon 15 Oct 18 15:44

» BBCN Regional meet by Nicetie on Mon 15 Oct 18 12:57

» C5 O2 sensor code?? by roppa440 on Mon 15 Oct 18 08:45

» C2 fibreglassing and prep. by L88 on Sun 14 Oct 18 17:16

» Road Atlanta this weekend. by UkBeancounter on Sun 14 Oct 18 14:29

» New Series of Wheeler Dealers an 02 Z06?? by dex99 on Sun 14 Oct 18 12:02

» Door removal on 79 coupe by Nigelcurry on Sat 13 Oct 18 20:01

» American Day - Museum of Power Essex by Forrest Gump on Sat 13 Oct 18 17:44

» C5 Performance Projects - book by robbiew on Fri 12 Oct 18 21:19

» Help with newly acquired 72 350 Auto by Jimbo64 on Fri 12 Oct 18 18:15

» speed bleeders by Grahamred70 on Fri 12 Oct 18 16:17

» South Central Regional Meeting and Midlands-ish Breakfast Club - October by Daytona Vette on Fri 12 Oct 18 10:44

» Essex Regional meeting by roscobbc on Fri 12 Oct 18 08:36

» 1972 Washer bottle wanted by Vetteheadtony on Thu 11 Oct 18 22:48

» Vette Hire In The U.S. by 86vetteman on Thu 11 Oct 18 20:33

» South Central Mids Supper Club Meet by Daytona Vette on Wed 10 Oct 18 07:29

OBD connector ? 1 or 2



Reply to topic
View previous topicEmail to a FriendPrinter FriendlyView next topic

Author

Message

Coltstingray

New Comer

Thu 01 Feb 18 13:02

OBD connector ? 1 or 2 Message Icon


Hi everyone Iím new on here Iím due to pick up my new baby soon a red 1989 C4 any day now canít wait. Not sure if this has been answered before I tried searching couldnít seem to find it.
I want to buy a OBD scanner and Iím having some trouble some websites on eBay or amazon say that there OBD 2 scanner works on a 1989 Vet but others say itís OBD 1 only that works, has anyone used a scanner on a C4 my year? and if so where can I get on

Thanks in Advance

Carlton

Reply with quote

gary 53

Club Member

Thu 01 Feb 18 14:10

Re: OBD connector ? 1 or 2


it will be OBD 1


--------------------
LOOKING FORWARD TO SUMMER

Reply with quote

Coltstingray

New Comer

Thu 01 Feb 18 20:54

Re: OBD connector ? 1 or 2


Thanks have you used one ? And would you be able recommend a certain one

Reply with quote

gary 53

Club Member

Fri 02 Feb 18 09:06

Re: OBD connector ? 1 or 2


You need TECH 1 OR 2
I have never used one here's a link
will tell you how to recover codes

https://corvettephotographs.com/c4vettes/ecm.htm


--------------------
LOOKING FORWARD TO SUMMER

Reply with quote

Coltstingray

New Comer

Sat 03 Feb 18 00:08

Re: OBD connector ? 1 or 2


Thank you appreciate it

Reply with quote

leanmeanvettemachine

Club Member

Wed 07 Feb 18 17:32

Re: OBD connector ? 1 or 2


Coltstingray wrote (View Post):Hi everyone Iím new on here Iím due to pick up my new baby soon a red 1989 C4 any day now canít wait. Not sure if this has been answered before I tried searching couldnít seem to find it.
I want to buy a OBD scanner and Iím having some trouble some websites on eBay or amazon say that there OBD 2 scanner works on a 1989 Vet but others say itís OBD 1 only that works, has anyone used a scanner on a C4 my year? and if so where can I get on

Thanks in Advance

Carlton


Hi Carlton,

Another idea if you need to know what the fault is but don't necessarily want to purchase a scan tool to find out, is to use the paper clip trick (explained here). With the ignition off, place a paper-clip between pins A & B of the 12-pin ALDL connector under the dash Image.

Turn the ignition on without starting the engine. Then get ready to count the flashes of the MIL (check-engine light). Sequences will be of the form "FLASH, FLASH pause FLASH, FLASH, FLASH". These flashes correspond to the two-digit diagnostic fault code, i.e. this example is code# 23. Troublecodes.net has a table of GM specific fault codes you can use to lookup the fault.

Once you've diagnosed the fault, turn off the ignition, and remove the paper clip. You can then clear the fault code by disconnecting the battery for more than 20 seconds.

TL;DR - The old ALDL diagnostics bus had a facility to flash the MIL (check-engine light). If you count the flashes you can diagnose the fault without a scan tool.

Hope this helps,
Alex


--------------------
'12 C6 Coupe (LS3 + TR6060)
Follow my build on IG @v8tor_17

Reply with quote

Coltstingray

New Comer

Mon 19 Feb 18 22:43

Re: OBD connector ? 1 or 2


Thanks for that I have tried to find mine canít locate it is it drivers side or passenger side? Or is it connected to something I have to unplug?
Cause itís not hanging down in there

Reply with quote

dm575

Regular

Thu 22 Feb 18 21:56


On my 91 the connector was tucked away under the dash. Remove the kick panel and take a look, it will be there somewhere Smile ( driver side to the right of the steering wheel )



Last edited by dm575 on Thu 22 Feb 18 21:57; edited 1 time in total. [17 %]
--------------------
1991 Black C4 Targa L98 Auto
1997 White Z28 Camaro Coupe LT1 Auto

Reply with quote

Redlevel

Club Member

Fri 23 Feb 18 10:08

Re: OBD connector ? 1 or 2


Coltstingray wrote (View Post):Thanks for that I have tried to find mine canít locate it is it drivers side or passenger side? Or is it connected to something I have to unplug?
Cause itís not hanging down in there


It's above and slightly forward of your right knee on the drivers side usually covered with a black plastic cap, just under the bottom of the dash but easily accessible.

If you have SES on the screen, don't panic or try to diagnose the codes right away as they are sometimes only symptoms and not actual faults.

Drive the car a good few miles, get it hot and idling nicely, then switch off, disconnect the battery, reconnect and see if the SES comes back, if it does, do the paper clip test and read what you've got. Corvettes do not like being idle for long periods and may well throw up codes after a long lay up just to p*ss you off. If the car drives fine even with codes don't fret as most codes are easily dealt with and are no real warning of impending doom! Yes

Good luck and keep us posted..

Reply with quote

Reply to topic
View previous topicEmail to a FriendPrinter FriendlyPrivate MessengerView next topic


Permissions

You cannot post new threads in this forum
You cannot reply to threads in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot add events in this forum
You cannot attach files in this forum
You cannot download files in this forum