Outer Limits 4x4 Board

Now that I have gone out and installed the emmissions system on my daughters Rocky, and got it registered, I now want to disconnect it.
Its a 3Y Toyota motor. Foolishly, I didnt note down how it was disconnected before "fixing" it.
Can anyone tell me what to disconnect, or more importantly, what to leave connected, as the bare minimum.

Cheers
Bundy

best way is to block the EGR inlet. ie plate across the EGR valve.

however being a petrol motor there can be some economy benifit in useing EGR, if its properly setup. it will depend on age of vechile (carb/EFI etc).

tweak'e wrote:however being a petrol motor there can be some economy benifit in useing EGR, if its properly setup. it will depend on age of vechile (carb/EFI etc).

I would have to agree, disconecting it wont make any noticeable difference to power, and wont take power away with it conected....

I recently fitted a new aftermarket 4y to my lux, replacing the 3y. The new motor didn't have near the amount of "drill outs" for the pollution system as the old one, ie no EGR, no christmas trees etc.

The only things which are set up to work are the vacuum advance and charcoal cannister. I now only have 2 pipes to the carby, not 5, and every thing else is blocked up, but still looks like its connected. The metal pipes which run over the top of the manifold are not on the vehicle. it looks much neater.

I have had no problems what so ever with the way it runs

just out of curiosity, why do you want to block it off??

tweak'e wrote:best way is to block the EGR inlet. ie plate across the EGR valve.

however being a petrol motor there can be some economy benifit in useing EGR, if its properly setup. it will depend on age of vechile (carb/EFI etc).

I disconnected the EGR on my car (not my 4wd), it made absolutely no difference to power or economy.
So I hooked it back up again.

KiwiBacon wrote:

tweak'e wrote:best way is to block the EGR inlet. ie plate across the EGR valve.

however being a petrol motor there can be some economy benifit in useing EGR, if its properly setup. it will depend on age of vechile (carb/EFI etc).

I disconnected the EGR on my car (not my 4wd), it made absolutely no difference to power or economy.
So I hooked it back up again.

ona petrol, if properly done it shouldn't make any noticable difference. EGR is off at full throttle so there should be no power change.

however older carby vechiles where often had really complicated systems which went faulty often causeing all sorts of problems. hence they are better rip out and thrown away.

with modern EFI motors it should be a different story. sorry havn't had much to do with EGR on EFI vechiles.

tweak'e wrote:ona petrol, if properly done it shouldn't make any noticable difference. EGR is off at full throttle so there should be no power change.

however older carby vechiles where often had really complicated systems which went faulty often causeing all sorts of problems. hence they are better rip out and thrown away.

with modern EFI motors it should be a different story. sorry havn't had much to do with EGR on EFI vechiles.

I was mostly curious to see what the results would be on part load cruising (i.e. flat road, 100km/h).
EGR has the potential to reduce throttling losses at cruise, but it also makes the efficiency drop.
I guess on my car those effects cancelled each other out damn near perfectly.

Ok, this is on a 22 year old, carbed, 3Y Toyota motor. 225000km on the clock. Engine history unknown. The emmisions were disconnected when we bought it.

Having played with diesels for the last 12 years or so, my knowledge for petrols has gone out the window yonks ago.

All I basically remember from my younger days was, the first thing you pulled from any vehicle if you wanted some sort of performance and economy improvement was the emmissions system. It also seems that the economy of this thing isnt the best at the moment, as I can virtually see the needle dropping, but this may be any number of things, as it hasnt had a tune or anything changed since purchase.

I think, that at the moment, I now have just the charcoal canister and the dizzy connected to vaccum, and everything else blocked off.

so your first step before a tune is ripping out the emission controls?

ive never had much to do with petrols either, but that sounds silly to me.

BundyRumandCoke wrote:Ok, this is on a 22 year old, carbed, 3Y Toyota motor. 225000km on the clock. Engine history unknown. The emissions were disconnected when we bought it.

original NZ and most likely AU ones as well, never had emission control systems on them anyway. sounds like the motor is an imported one.

Shadow wrote:so your first step before a tune is ripping out the emission controls?

ive never had much to do with petrols either, but that sounds silly to me.

yeah thats often the way with older motors. in fact with a lot of the early ones you could get them running better and with less emissions without the emission gear. just shows how crappy the early emissions gear was.

now days the systems are a lot more accurate. which mean you can get gains due to reducing throttle looses.

Nope, original engine for vehicle. Numbers match on block and plate.

Does anyone know what the penalty is - or where to find the penalty - for disconnecting or blocking an EGR?
Some diesel vehicles are notorious for carbon build up due to our crap diesel, and the EGR system, and people are taking to blocking them off.

I'm not about to do so as I have a 5 year warranty on my vehicle, and am not about to go playing silly buggers with that, but would be interested to know what the actual penalty is if you get a roadside inspection AND they put a sniffer on your exhaust AND that then leads them to find your EGR is blocked off.

Thanks in advance.

Ezookiel wrote:Does anyone know what the penalty is - or where to find the penalty - for disconnecting or blocking an EGR?
Some diesel vehicles are notorious for carbon build up due to our crap diesel, and the EGR system, and people are taking to blocking them off.

I'm not about to do so as I have a 5 year warranty on my vehicle, and am not about to go playing silly buggers with that, but would be interested to know what the actual penalty is if you get a roadside inspection AND they put a sniffer on your exhaust AND that then leads them to find your EGR is blocked off.

Thanks in advance.

potentially there are big fines. But this has to all go through court etc. Most likely you will just get a defect notice.

Ezookiel wrote:Does anyone know what the penalty is - or where to find the penalty - for disconnecting or blocking an EGR ?

One of the guys in the local car club got done about a year ago.......

FINE was $7000, for no egr, no cats, and atmosphere released gases from the BOV's.......
( I know missing cats attracts a fine of $2000....... )

He had ...... Court appearance, and a whole heap of uglyness to get the car back on the road, costs totaled around the 10K mark in the end