| Author |
 Topic  |
|
| |
Current Topic Rating:  | Join the Forum to Rate this Topic at: www.VNCommodore.com Support Forums
|
|
|
vnwags
P Plater
37 Posts
 |
 Posted - 13 Jul 2007 : 12:08:00 PM
|
|
hey when i put the clutch in when stopping at lights or whenver my idle goes spastic. it drops right down and then jumps up and then back down again. occasionally it will even stall. this happens for about 2 seconds from the time a put the clutch in. then if it hasn't stalled it will idle perfectly fine (for a vn that is). i've run a dose of injector cleaner through but that didnt help and i've checked all vacumm hoses and cleaned out the throttle body but still no change! any ideas what it might be?? keep in mind that i did an auto to manual conversion on the car and its been happening since then.
|
|
Report to Moderator |
|
|
nodg
National Driver
1667 Posts
|
Posted - 13 Jul 2007 : 12:16:10 PM
|
if you havent already spray you throttle body and iac with carbu cleaner, or better still take the whole iac module off and soak it in petrol. otherwise id look at tears in the map line, or the map itself.
did you change from a auto ecu to manual ecu, they work and people swear by it but that might be your problem,after all theres no more lockup converter. |
Cheers,
Nodg. |
Report to Moderator  |
|
|
VNSVLE
Forum Moderator
1316 Posts
|
Posted - 13 Jul 2007 : 12:44:16 PM
|
| I have had both auto and manual ecu and chip in my manual commy. Didn't make any difference what so ever. |
What's the difference between understeer and oversteer?
Understeer is when the driver is scared.
Oversteer is when the passenger is scared. |
| Report to Moderator |
|
|
nodg
National Driver
1667 Posts
|
Posted - 13 Jul 2007 : 1:15:30 PM
|
| ive had a manual running with the auto chip and it seemed to be ok. afterall the ecu will still be trying to engage/dissengage the lockup converter when the car slows down, thats all i can think of with the info described. by the way vnwags is the airconditioning on whilst this happens? |
Cheers,
Nodg. |
| Report to Moderator |
|
|
nodg
National Driver
1667 Posts
|
Posted - 13 Jul 2007 : 1:16:54 PM
|
| and does it happen when you pull up at the lights or even at speed? |
Cheers,
Nodg. |
| Report to Moderator |
|
|
vnwags
P Plater
37 Posts
|
Posted - 13 Jul 2007 : 9:55:19 PM
|
hey yeah i tried spraying the throttle body but haven't taken it off and cleaned it. will that help? and i'm not 100 % on the air con. i don't have any gas in it so it doesn't work anyway. and the push switch says that its off but i will try it with the switch on 2 moz. maybe with all the fiddiling with the cd player it may have reversed itself?? though that seems unlikely. not a real big issue as i will be pulling the engine out in a few months but just getting slightly annoying  |
| Report to Moderator |
|
|
vnwags
P Plater
37 Posts
|
Posted - 13 Jul 2007 : 9:59:18 PM
|
| sorry forgot last question i definetly does it everytime when i'm breaking/slowing down but not sure if it does if i'm say sitting on 110 on the highway and then put the clutch in and coast for a bit. also i have access to a manual ecm. are they easy to change over?? if so i could change it tomorrow to test it and see if it fixes the problem |
| Report to Moderator |
|
|
vn_maniac_16
Fully Licenced
139 Posts
|
Posted - 13 Jul 2007 : 10:31:15 PM
|
check ur battery terminals and also your high tension leads n spark plugs! thats wat fixed mi rough idle!
hope that helps!
pz |
--------------------------------------------------- |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 14 Jul 2007 : 10:53:43 AM
|
| I had the same problem the other night! It was the firing order was around the wrong way! ( drunk ) also have a look at your map sensor hose if it has even perished a bit it will cause you drama! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
nodg
National Driver
1667 Posts
|
Posted - 14 Jul 2007 : 2:33:12 PM
|
| just a quick note there is 2 differant configurations that you can put the leads on both the same performance but the other gives better fuel economy. sounds strange hey but its true |
Cheers,
Nodg. |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 14 Jul 2007 : 6:28:04 PM
|
so wich 1ns are they nodg??
|
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
nodg
National Driver
1667 Posts
|
Posted - 15 Jul 2007 : 7:14:27 PM
|
| When i changed the sprak plugs for the first time in my vp i noticed the leads were set up differant to every other v6 ive ever worked on so i went and checked one of my mates cars and his was the standard 165432. I swapped the leads to the standard v6 spec. started the car and i couldnt tell the differance, drove it and found i got better fuel economy. Got me thinking today to what the configuration was and am fairly sure the leads were set up back to front, 234561? i cant remeber how smashed i was on the day but am 100% positive the leads were fiddled with? I wrote the configuration down about 2 1/2 years ago but left it in my mates car so its gone |
Cheers,
Nodg. |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 15 Jul 2007 : 8:07:13 PM
|
lol when we did the lexen motor we played around with the firing order! But there was always a bak fire at the end of the note! bak to spec!
|
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
nodg
National Driver
1667 Posts
|
Posted - 15 Jul 2007 : 8:29:34 PM
|
| call me weird but i sh*t you not its true. go have a play and tell me what works because i cant remeber exactly what went where but sure it was back to front |
Cheers,
Nodg. |
| Report to Moderator |
|
|
3.8litresofjustice
P Plater
48 Posts
|
Posted - 23 Jul 2007 : 11:27:44 PM
|
i find that if a push the car hard and then i pull up at the lights ill get a rough idle but if im just crusing ill get near perfect idle?
is this normal or should i get something checked out? |
| Report to Moderator |
|
|
nodg
National Driver
1667 Posts
|
Posted - 23 Jul 2007 : 11:56:06 PM
|
| its normal if you have really flogged it and heated up the motor, the car automatically adjusts the air/fuel mixture to your driving habits and the rough idle is because of extra fuel being added to the mixture. |
Cheers,
Nodg. |
| Report to Moderator |
|
|
Swathe
P Plater
24 Posts
|
Posted - 27 Jul 2007 : 3:54:33 PM
|
| Call me crazy but it's almost sounds like a timing issue |
1990 VG ute |
| Report to Moderator |
|
| |
Topic |
|
Topic Locked
