One more question if you don't mind.
I have just replaced my exhaust manifold and turbo.
I welded up the hole in the manifold and blocked the vacuum pipe to the inlet.
My question is do you have to block the end of the EGR pipe that I hacked off? The reason I ask is that it is currently just open and getting to it can be a bit difficult so I was wondering if I could just leave it like that?
Thanks.
Just a bit of information:
Note that the S15 does not have this system. Funny that.
Also, I had mine removed when I upgraded my manfold / turbo combination.
I still passed emissions tests at idle and cruise for my car - and that's running 125% power over standard. Makes me wonder how effective the EGR system is anyway - as the pollution standards in Australia are pretty strict.
Cheers,
Brendan
The S14a doesnt either. S14's also pass the MOT without it fittedOriginally posted by Crow
Just a bit of information:
Note that the S15 does not have this system. Funny that.
Also, I had mine removed when I upgraded my manfold / turbo combination.
I still passed emissions tests at idle and cruise for my car - and that's running 125% power over standard. Makes me wonder how effective the EGR system is anyway - as the pollution standards in Australia are pretty strict.
Cheers,
Brendan
Originally Posted by silverzx
As far as i understand from the manual, drawing's etc you haveOriginally posted by shahpor
One more question if you don't mind.
I have just replaced my exhaust manifold and turbo.
I welded up the hole in the manifold and blocked the vacuum pipe to the inlet.
My question is do you have to block the end of the EGR pipe that I hacked off? The reason I ask is that it is currently just open and getting to it can be a bit difficult so I was wondering if I could just leave it like that?
completely disabled it and can just keep it where it is.
Pulled out the engine last weekend and it only had the two
connections you have removed. don't interface with anything else.
Far as i found out atleast.
That is a relief....
Got the car going this morning and it doesn't seem to have missed the EGR at all
Thanks for the help Pete.
How do I block the EGR pipe? What with?
anything you can find, a small bolt and a hose clip
So just cut into the tubing and jam in a couple of bolts and clip them in place?Originally posted by Nismo Mark
anything you can find, a small bolt and a hose clip
Is it definitely safe to get rid of EGR? Effectively the EGR is lowering the % of oygen in the air content entering the combustion chambers. Is there a danger that without the EGR, the mixture could be lean (ie too much oxygen). The effect will also depend on where the AFM is in relation to the EGR input to the inlet air stream.
I'm not saying not to remove the EGR as I don't know enough - just devil's advocate really.
Robert
The EGR is only there to reduce emmisions, the S14a doesnt have it and they run fine
But maybe the ECU fuel/air mixture mapping in the S14a is different to compensate.......... ?Originally posted by Nismo Mark
The EGR is only there to reduce emmisions, the S14a doesnt have it and they run fine
Removal of the EGR will definitely change either (or both) the;
* volume of gas entering the cylinders or;
* ratio of fuel to oxygen in the cylinders.
Another thought. I'm more familiar with the EGR circulation on my turbo diesel Estimas. On these the EGR is automatically switched off when the throttle is fully open. Is the same true on the S14? If so, is there much point removing the EGR?
The only reason I removed my EGR is because I couldn't get my manifold off without hacking the EGR pipe off first!
After that it was either struggle to try and weld a new pipe in its place, or just remove the whole system.
I haven't noticed any difference from its absense. Well, not yet anyway.......
The main reason to remove it is to eliminate the small hesitation you get at around 2.5k
I also have some hesitation around 2200 rpm, so all I have todo is block the pipe like in the picture ?Originally posted by Pete Larsen
So just to check. Blocking of this one that goes to the intake plenum: (Abit unsure if the term is vacuume side)
Is it difficult to get at ?
And can that pipe coming from the inlet also be used to read boost pressure by any chance ?
Rudy, the answer to the question is YES. I took the pipe off last night and shoved a bolt in the pipe. Took it for run and it run completely smooth! Fantastic. Ive had this problem for nearly 2 years now and have spend hundreds of pounds at garages that acheived nothing. I've even replaced the AFM for no good reason. So just want to say a huge thanks to the SXOC for solving this annoying problem. Cheers!
As for the detting problem i am going to ND soon for a boost increase and remap so i will let you know if there are any signs of detting as a result.
P.S. If anyone wants to buy an AFM let me know! I bought another in an attempt to fix the stutter problem so i have a spare now. £80.
is that a new one then ????????Originally posted by Rich B
P.S. If anyone wants to buy an AFM let me know! I bought another in an attempt to fix the stutter problem so i have a spare now. £80.
i ask coz 2nd hand ones normally go for £20-30 on here
no its from a scrap yard, i paid 90 not knowing any better.. in that case then £30 anyone?!
Do you just need to block the tubing before it goes into the EGRC-BPT valve? How? Surely if you just block the tube one way then you get leaking from the EGR bit?Originally posted by Rich B
Rudy, the answer to the question is YES. I took the pipe off last night and shoved a bolt in the pipe. Took it for run and it run completely smooth! Fantastic. Ive had this problem for nearly 2 years now and have spend hundreds of pounds at garages that acheived nothing. I've even replaced the AFM for no good reason. So just want to say a huge thanks to the SXOC for solving this annoying problem. Cheers!
As for the detting problem i am going to ND soon for a boost increase and remap so i will let you know if there are any signs of detting as a result.
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