| Author |
 Topic  |
|
| |
Current Topic Rating:  | Join the Forum to Rate this Topic at: www.VNCommodore.com Support Forums
|
|
|
jakewaze
P Plater
14 Posts
 |
 Posted - 15 Feb 2009 : 4:36:17 PM
|
Hi, bought my 1990 vn s couple of weeks ago. I bought it with the engine light on and it came up with code 42 (Electronic Spark Timing Circuit (EST)) which i think is either the plugs, leads or coil pack.
I replaced the leads as there was a loose one but has made little difference. should i try the coil pack or what nxt?
cheers.
P>S when the engine light is off it runs perfectly smooth, but occasionally the car will j0lt making the engine light come on and the car sometimes stalls and idles funy. code 42
|
|
Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 15 Feb 2009 : 5:43:58 PM
|
| Have you given the car a service and a comp reset yet??? If not that would of been one of the first things I would of done....there is a few other things to try b4 you buy a new coil pack! |
3 can keep a secret if 2 are dead |
Report to Moderator  |
|
|
Rangerhannah
P Plater
60 Posts
 |
Posted - 16 Feb 2009 : 08:43:43 AM
|
| I agree with Trizo..... I did the same thing when my VN was doing the same symptoms and then she was fine.... |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 16 Feb 2009 : 10:21:11 AM
|
| also welcome to the site m8, Its good to have a few more guys from W.A |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
jakewaze
P Plater
14 Posts
|
Posted - 16 Feb 2009 : 5:11:53 PM
|
thannks for the welcome and info.
it is due for a service in a bout 4000k's so i'll prob wait till then for that, but ghow do i go about reseting the computer??? if it heps i have a workshop manual.
cheers |
| Report to Moderator |
|
|
jakewaze
P Plater
14 Posts
|
Posted - 16 Feb 2009 : 10:44:40 PM
|
Pulled the engine fus out for a few mintutes and then took it for a spin, and is runnign smooth as.
smoother than my mums ecotec.
get me license in 2 days so its a relief
I will check back after i've taken it for a longer drive
cheers |
| Report to Moderator |
|
|
jakewaze
P Plater
14 Posts
|
Posted - 17 Feb 2009 : 12:54:41 AM
|
DAMN IT!
just started it up a again and engine light came on straight away, did another computer diaagosis, came up with code 42 again, still a fault in the "electrical spark timing circuit". Should I replace the coil pqck yet or any other ideas???
Thx Again
th |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 17 Feb 2009 : 03:01:48 AM
|
no need for that yet,, like I said give it a service your self, and then a comp reset, alsso change the plugs and leads b4 u go buying a coil pack! The little orange light isnt the end all of the car  |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
jakewaze
P Plater
14 Posts
|
Posted - 17 Feb 2009 : 5:56:27 PM
|
| k, thx trizo, changed the leads about a week ago but will test the plugs asap |
| Report to Moderator |
|
|
jakewaze
P Plater
14 Posts
|
Posted - 17 Feb 2009 : 6:01:07 PM
|
| thx trizo, the leads were replaced less than a week ago, i'll do the plugs nxt, is the computer reset tinghy just pulling the engine fuse out or is it somethin else |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 17 Feb 2009 : 6:21:58 PM
|
| ok you can pull the engine and ignition relay out if its a s1 ... if its a s2 just take out the enigine relay!! leave it out for a min or 2 and then replace! start the car and either take it for a drive around the block (nice and easy) or give it a light rev in park untill you hear the revs pick up and then drop ...... THIS IS A SURE WAY TO TELL THAT THE ECM HAS RESET!!! Keep us posted, and if that dont work we will think of somthing else! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
adro
P Plater
22 Posts
|
Posted - 17 Feb 2009 : 6:24:22 PM
|
quote:
Originally posted by trizo
ok you can pull the engine and ignition relay out if its a s1 ... if its a s2 just take out the enigine relay!! leave it out for a min or 2 and then replace! start the car and either take it for a drive around the block (nice and easy) or give it a light rev in park untill you hear the revs pick up and then drop ...... THIS IS A SURE WAY TO TELL THAT THE ECM HAS RESET!!! Keep us posted, and if that dont work we will think of somthing else!
haha thanks for that i was wondering how to reset the ecm aswell |
Women, They Never Understand The Obsession Between A Man And His Commodore  |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
|
|
jakewaze
P Plater
14 Posts
|
Posted - 18 Feb 2009 : 12:06:17 AM
|
hey trizo
did the comp reset and started the car. with the engine light off i tapped the computer, then fiddle with the wires and also tapped the coil with no engine light still. I'll take it for a drive 2morrow, (shoud have my license) and see how it goes, if it comes back i'll replac the plugs and go from there
thx for all ya help so far |
| Report to Moderator |
|
|
jakewaze
P Plater
14 Posts
|
Posted - 18 Feb 2009 : 8:45:35 PM
|
hi
this is the latest, brought a multimeter today and the manual i have tells you how to use it to test for code 42 so hopefully that'll fix it but i will check back asap |
| Report to Moderator |
|
| |
Topic |
|
Topic Locked
