[Chop]

My Lwb 93 vit has an erratic idle, it can do it hot or cold, and doesnt do it all the time It can sit on 2000 rpm and then drop then go back up and at one time was like a pulse.
Anyone know the cause?

Cheers

Chop

[BJPK]

more than likely idle air control valve. try cleaning it with throttle body cleaner or similar.

[Chop]

And that bit is where?

Chop

[BJPK]

just near the throttle body from memory.
try cleaning it with some throttle body cleaner or simila.

[atari4x4]

it could be a blocked EGR : http://bbs.zuwharrie.com/content/topic,27769.0.html

or the IAC: http://bbs.zuwharrie.com/content/topic,22023.0.html
http://bbs.zuwharrie.com/content/topic,87081.0.html

i'm not 100% sure how relevant those threads are as they are US based 1.6's

[Hybrid]

Is the 93 multi-point injected? I think that idle air control post above describes the wax pellet design that is used in the throttle body injected motors. i didn't think they made it into the multi-point ones. Whatever it is it must have one of those fast idle thingy-ma-jigs that bumps the idle when theres a power draw on the system like turning the head lights on. Try disconnecting this to rule it out.

[Chop]

atari4x4 wrote:

it could be a blocked EGR : http://bbs.zuwharrie.com/content/topic,27769.0.html

or the IAC: http://bbs.zuwharrie.com/content/topic,22023.0.html
http://bbs.zuwharrie.com/content/topic,87081.0.html

i'm not 100% sure how relevant those threads are as they are US based 1.6's

Mine is the same as the one pictured in this thread, might have to look at that pipe they say gets clogged up!

chop

[Chop]

Well today i noticed the check engine light was on, dont think it had come on before but it is hard to see it during the day!
Maybe it was coz the car didnt like being north of the city


Chop

[steak_knife]

Chop wrote:

Well today i noticed the check engine light was on, dont think it had come on before but it is hard to see it during the day!
Maybe it was coz the car didnt like being north of the city


Chop

The IFL can help lot's, some of the code's can take 30 cycle's to appear, so finding fault's not all way's easy..

[royce]

whenever mine does that I clean the throttle body with contact clean and usually find a loose hose somewhere and its right

the iac is controlled by the computer, for it to be switching that it has to be reading a fault somewhere

[Chop]

steknig wrote:

Chop wrote:

Well today i noticed the check engine light was on, dont think it had come on before but it is hard to see it during the day!
Maybe it was coz the car didnt like being north of the city


Chop

The IFL can help lot's, some of the code's can take 30 cycle's to appear, so finding fault's not all way's easy..

IFL? sorry got my dunce on

Chop

[lordfury007]

my GV used to turn the check engine light on from time to time - i ended up finding it was a loose connection in the engine bay that worked itself loose from time to time. Wasn't noticeable at all except the check engine light turned on.

Not that i'm saying the two aren't connected, just saying its a possibility.

[Polar_Bear]

Chop wrote:

Maybe it was coz the car didnt like being north of the city

dont worry about it, if you were norf, that will do it to ya....just look what it does to the locals

[Chop]

That would put the check engine light on

Been reading through this site http://www.kick-fix.com/ very good info, will be going through some of the fixes on here

Chop

[steak_knife]

Chop wrote:

steknig wrote:

Chop wrote:

Well today i noticed the check engine light was on, dont think it had come on before but it is hard to see it during the day!
Maybe it was coz the car didnt like being north of the city


Chop

The IFL can help lot's, some of the code's can take 30 cycle's to appear, so finding fault's not all way's easy..

IFL? sorry got my dunce on

Chop

It's F*#ked Light.

[steve]

did you check the error code?

your air flow meter could be stuffed, that's if you got one with your engine.

[steak_knife]

steve wrote:

did you check the error code?

your air flow meter could be stuffed, that's if you got one with your engine.

it's bin a while now Steve...

[Chop]

Just found a crack in that resonator thingy to the side of the airbox, the thing that looks like a blob
Wondering if that wouldnt be helping the cause.

Chop

[atari4x4]

Chop wrote:

Just found a crack in that resonator thingy to the side of the airbox, the thing that looks like a blob
Wondering if that wouldnt be helping the cause.

Chop

the cracked blob wouldn't help the situation, smash some silicone or insulation tape on it & see if it fixes it.

[Chop]

royce wrote:

whenever mine does that I clean the throttle body with contact clean and usually find a loose hose somewhere and its right

the iac is controlled by the computer, for it to be switching that it has to be reading a fault somewhere

Royce, do you spray the pretty much the whole throttle body when you clean it?

I picked up some MAF cleaner and will give that a clean also, and i dont think i can get in to clean tge EGR pipes as i think my model has the tubes in the intake casting.

Chop