Hi all - need to ask a couple of questions..if its dry this weekend -which i know it wont be but we live in hope..i was going to clean the throttle bodies...now...where are they!?!

is the the two Outer pipes going into the engine, do i just take the jubilee clips off and remove the rubber piping?

 

Also, was thinking about air flow to the induction kit - anyone rekon its worth getting say two cold air feeds and having them bent round inside the front bumber either side at the bottom up to the apexi induction kit...

 

thanks for any help..

Yes mate if you remove the 2 rubber pipes either side by un doing the jubilee clips that is where you will find the throttle bodies.

As for 2 cold air feeds directing air at the bottom of the Apexi, I would'nt have thought that would make a lot of difference as it would not change the volume of air that the apexi could suck in. IMHO The only way to improve air flow would be by doing the twin Maff and twin filter thing but then you would need a re mapped ECU etc. Unless you create a RamAir device.

Yes mate if you remove the 2 rubber pipes either side by un doing the jubilee clips that is where you will find the throttle bodies.

As for 2 cold air feeds directing air at the bottom of the Apexi, I would'nt have thought that would make a lot of difference as it would not change the volume of air that the apexi could suck in. IMHO The only way to improve air flow would be by doing the twin Maff and twin filter thing but then you would need a re mapped ECU etc. Unless you create a RamAir device.

 

 

Some piping to encourage cold air into the Induction area cant be a bad thing tho can it?

Yes mate if you remove the 2 rubber pipes either side by un doing the jubilee clips that is where you will find the throttle bodies.

As for 2 cold air feeds directing air at the bottom of the Apexi, I would'nt have thought that would make a lot of difference as it would not change the volume of air that the apexi could suck in. IMHO The only way to improve air flow would be by doing the twin Maff and twin filter thing but then you would need a re mapped ECU etc. Unless you create a RamAir device.

 

 

cheers for the info speedemon....

Some piping to encourage cold air into the Induction area cant be a bad thing tho can it?

 

 

thats what i was thinking..might give it a go...can't hurt anyway can it..

I had a mate who had a problem with intake temperatures being to high on his motor-some piping cured it.

I had a mate who had a problem with intake temperatures being to high on his motor-some piping cured it.

 

 

yeah i'll do it this weekend - hope it doesnt look too silly from the front though... :rofl:

Hi now...where are they!?!

is the the two Outer pipes going into the engine, do i just take the jubilee clips off and remove the rubber piping?

 

 

Ed,

 

Just to clarify things, the throttle bodies are actually part of the front of the engine. Therefore, you need to remove the two inner pipes (not the outer ones) - they are the fat (2.5") pipes.

 

When cleaning the throttle bodies hold the butterfly valves open by putting a screwdriver in the throttle cable linkage. You're then free to spray carb cleaner into the throttle bodies and clean them out. Once done you may want to leave them open for a short while to allow any carb cleaner to evaporate as you don't want to ignite it when you fire up the engine.

 

If you really want to do a good job then you need to clean the idle control valve at the back of the engine. All the crap that came out of your throttle bodies will eventually make its way to this valve. You can either spray some carb cleaner into it and clean it like that or take it apart and clean the parts.

 

Finally, reset the ECU by disconnecting the negative terminal of the battery for about an hour or so (good idea to disconnect at the beginning of the job). This will clear any self-learned values and you'll start with a clean slate (so to speak).

 

HTH

 

Dan

Will this make much difference to the performance of the engine? Or is it just nice to do if you get the chance? Can the idle control valve be got at in situ?

Will this make much difference to the performance of the engine? Or is it just nice to do if you get the chance? Can the idle control valve be got at in situ?

 

The main reason why you'd want to clean the throttle bodies (TB's) is to cure either a rough idling problem or small hesitation problem. Basically, as the butterfly valves collect carbonised deposits (ie dirt) etc there is a potential for there not being a complete seal when they are closed (ie on idle). There is also a tiny hole at the front of the butterfly valve which allows enough air to pass through it on idle. If this gets clogged up with dirt you're likely to experience rough idling.

 

Other than that there is no performance difference - just a nice fuzzy feeling that you've cleaned something ;)

 

The idle control valve can ge reached in situ as it is located at the top of the engine (near the firewall). The idle control screw is a little fiddlyer because it is at the bottom of the idle control valve under several wiring looms and pipes.

 

One way of seeing whether your idle control valve is dirty is if your car is idling high (ie 1000+ rpms). Hit the top of the valve assembly with the back of a screw driver (don't over do it ...) and you'll likely find that your rpms will drop to a more reasonable level. This points to the fact that the release pin (on the inside of the assembly) is dirty and not able to move freely until you hit it. Take the rubber hose off and squirt in some carb cleaner. This will usually temporarily resolve the issue. However, if you want to give it a propper clean then you'll need to remove it from the car and disassemble it.

 

HTH

 

Dan

So as my idle at the moment is steady about 800 pm guessing i dont need to mess with this much?

Ed,

 

Just to clarify things, the throttle bodies are actually part of the front of the engine. Therefore, you need to remove the two inner pipes (not the outer ones) - they are the fat (2.5") pipes.

 

When cleaning the throttle bodies hold the butterfly valves open by putting a screwdriver in the throttle cable linkage. You're then free to spray carb cleaner into the throttle bodies and clean them out. Once done you may want to leave them open for a short while to allow any carb cleaner to evaporate as you don't want to ignite it when you fire up the engine.

 

If you really want to do a good job then you need to clean the idle control valve at the back of the engine. All the crap that came out of your throttle bodies will eventually make its way to this valve. You can either spray some carb cleaner into it and clean it like that or take it apart and clean the parts.

 

Finally, reset the ECU by disconnecting the negative terminal of the battery for about an hour or so (good idea to disconnect at the beginning of the job). This will clear any self-learned values and you'll start with a clean slate (so to speak).

 

HTH

 

Dan

 

 

Thanks for all the info Dan - i'll give it a go and let you know how i get on!

:bow:

So as my idle at the moment is steady about 800 pm guessing i dont need to mess with this much?

 

 

Probably not but the ECU "can" keep it artificially at that particular rpm. Best thing is to disconnect the idle valve and see what the rpm's do. If they drop then you'll know the idle was held by the ECU. If the rpms don't drop then you're ok. ;)