Hey im getting a code 12: egr valve. anyway it was removed and cleaned and im still getting that code

anyway instead of getting a new valve i just decided to get a block off plate... i just have 2 questions...

1st : Will blocking off the EGR valve affect anything on my car like performance or gas mileage?

2nd : Can i just get a regular sheet of metal from a hardware store and put it to block off the EGR or i have to get something a little stronger and thicker?

 

You are getting a EGR code and I am getting a EGR Lift Solenoid code. What the hell is a EGR Lift Solenoid?

 

could be that the solonoid in the actual egr valve isnt working... im just getting a code for the whole egr... but i could be wrong... what does anyone else think?

 

I got a plate if you want it.

 

but all you need is a peice of sheet metal right? and just cut to the dimensions of your EGR?

 

Dont get something like paper thin if thats what your asking. Something a little bit stronger than sheet metal would be prefered.

the EGR is just in place for emissions. It puts some of the exhaust gas through the motor a second time. Your gas mileage shouldent be effected and performance should improve a bit.

 

i was thinking maybe something a little thicker than a can of coke

 

umm yea thicker than that lol. id say like clipboard thick.

 

lol... i see... but that would probably be pretty hard to cut then

 

Doesn't need to be that thick at all. I used a section of aluminized stove piping I had lying around - couldn't have been any more than 1mm thick. Aluminum from a soda could very well work.

And maybe you know this, but blocking off the EGR isn't going to get rid of the code . . . .

 

well it could very well get rid of the code, cause it only seems to come on after i drive the car for 10-15 min... if it were completely broken wouldnt it throw the cell right away?

 

Blocking off the EGR may not improve performance any; it may even be worse for your motor by raising EGT's!

Regardless, if you're trying to get rid of the code, the metal doesn't have to be too thick.

 

thanks.. ill get it done

 

What he said... blocking it off will not remove the code. It's all in the Helms... the ECU sends a position command, then checks to see if it got there. If not, then error.

 

ok but blocking it off, will not require the EGR to move up or down... it will just stay as it is, and the computer wont read that the EGR will not go up or down... the computer will just think its closed no?

 

the computer will think something is wrong and throw a cel at you again, thats why if you block it off you gotta leave it plugged into something so the ecu still see's the signal. just replace the egr and be done with it. they shouldent be to expensive.

 

well i plan on leaving it plugged anyway

 

i don't know about you guys but my egr hasn't been wired up right for awhile (its getting wired up as soon as the parts all come in) and it idles like ****, its not the IAC valve, not the FIT valve its the egr valve thats actually causing it to idle so shitty. its the only code i'm throwing so i'm assuming you people that want to block it off while it will improve performance i think you will have the same problem as i do. i'm pretty sure it will idle low at startup as well, so would you rather gain a few hp or have your car idle right at startup. also the egr solenoid is a smaller part thats behind the egr valve and has a vacuum line going to it, its a necessity in your EGR working right, i know because mine wasn't put in with my swap and its run like **** at startup ever since.

 

on a 4th gen you can block the egr without throwing anymore codes. OBd 1 prelude ecus only check for lift. So if its throwing a lift code you need to clean it before you block it.

On a 5th gen The ecu checks the map as well so it will know if it is blocked. A 5th gen will throw a code with a blocked egr.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Behan &raquo;</TD></TR><TR><TD CLASS="quote">on a 4th gen you can block the egr without throwing anymore codes. OBd 1 prelude ecus only check for lift. So if its throwing a lift code you need to clean it before you block it.</TD></TR></TABLE>

i don't get it..

Does that apply to OBD1 JDM ECUs? Do you just need to hook up a load to the lift circuit? My thinking was that the ECU throws the lift code because the EGR is not in the expected position? hmmm...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Behan &raquo;</TD></TR><TR><TD CLASS="quote">on a 4th gen you can block the egr without throwing anymore codes. OBd 1 prelude ecus only check for lift. So if its throwing a lift code you need to clean it before you block it.

On a 5th gen The ecu checks the map as well so it will know if it is blocked. A 5th gen will throw a code with a blocked egr.</TD></TR></TABLE>

Soooo, a 5th gen with a p13 will not throw a code?

 

theoretically, no it wont throw a code.

it shouldn't with hondata either.

 

I have an OBD1 H23 with the EGR blocked, as well as the coolant by-pass done. I have no idle problems at all. I just kept the EGR terminal plugged like stock, as well as the vacum line, and moved the whole unit over (bolted it to the coil bracket). I am pleased. No CEL.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">

i don't get it..

Does that apply to OBD1 JDM ECUs? Do you just need to hook up a load to the lift circuit? My thinking was that the ECU throws the lift code because the EGR is not in the expected position? hmmm... </TD></TR></TABLE>

Basically lift means movement. The ecu is checking to see that the egr is moving. It doesn't recognize the fact that the exhaust isn't being recirculated.

If you have the egr circuit hooked up correctly and just install a block off plate you will not throw any codes.

Also i know for a fact you won't throw any codes witha jdm p13 ecu and a blocked egr. I'm using a (borrowed, thanks andy ) Jdm ecu right now and no codes.

 

I used sheetmetal, cut to perfection. I tried to sneak one by and just have the sheetmetal on the IM with some RTV high temp sealent. Yeah well, as soon as it warmed up, the sheetmetal would rattle under any time of load.

So I made a cleaner piece of sheetmetal, put more RTV on that bitch, and put the EGR over it. Holds nicely

Sheetmetal alone won't do it. Looks like a 3/8" steel piece would, but good luck cutting it.

Adi