I was driving yeaterday when the PGM-FI light came on......
I checked the ECU and it revealed that the EGR Valve may be going bad (12 Blinks), so I went down to my nearest auto parts store to ORDER A NEW ONE......
I have to pick it up tomorrow, but I won't be able to install it until SATURDAY......
So is it okay to drive on a Bad EGR Valve? No STALLING? No Black Smoke? No Engine Damage?
yeah. you should be fine. It might run a little rich, but it'll be fine.
Lostforawhile:we have to pick on him he's CAH he spray painted himself into this corner with the accord.
No damage from being too rich?
It should not cause any problem besides some pinging under acceleration; EGR is an emission device that reduces NOx emissions by lowering temperatures at the combustion chamber (it does that by injecting regulated amounts of exhaust gases into the intake)
Probably the valve's sensor went bad in yours; that is what tells the computer how much to open (or close) the EGR valve. You should be OK unless you try to pass emissions test without a working EGR (most likely it won't pass)
cool.........thanks.........
still....I won't feel better until I replace the valve, and that won't be until saturday......
guess I'll just endure......
One thing that I have noticed about my Accord Lx-i is that it seems to be a bit more powerful, even though its not a good idea to have a Bad EGR Valve......
I once heard that the European Accords (EX, EX-i, etc.) have a higher horsepower/torque output because those models lack emissions components, so I guess thats what I am experiencing in mine.....
I was on the highway the last couple of days and although my engine was a little unstable (lots of vibration due to the EGR failure), I noticed that I was able to reach 75-80mph quicker than before. This totally FREAKED ME OUT, because I've never went that fast on the highway before, I ALWAYS stick to the speed limit (60-65mph)......
ALMOST MAKES ME WANT TO NOT REPLACE THE VALVE........
your better off just blocking the damn thing...i had to anyway when i boosted...doesnt make your car run rich LOL..who told you that? all it does is reburn the exhuast gasses..its part of the emissions deal.. its not going to hurt,damage,break anything...just to let you i hadnt had any problems when mine was broke...you can always clean it and put it back in.
Rendon
Last edited by Rendon LX-i; 05-28-2009 at 06:27 PM.
200+ ALL MOTOR LS VTEC
oh yea i need to make a block off plate also... hmmm...
Originally Posted by CAH
i just pinched the tube and brazed it...and was a good seal
200+ ALL MOTOR LS VTEC
If you guys want me to I'll make block of plates for 10 bucks shipped. I'll take a pic of mine tomorrow if you want me to.
Lostforawhile:we have to pick on him he's CAH he spray painted himself into this corner with the accord.
shit ill buy one...i need one...lol would look alot better then mine lol...
200+ ALL MOTOR LS VTEC
yeah mine's all polished and shiny. I even sprayed it with clearcoat so it won't rust again.
I'm assuming the egr valve is basically the same for both fi and carbed correct? As in same bolt spacing, and clearance around.
Lostforawhile:we have to pick on him he's CAH he spray painted himself into this corner with the accord.
yes indeed...give me a pic an well see..im pretty sure..same egr...
200+ ALL MOTOR LS VTEC
Suuure.
The EGR has absolutely no 'performance' value, its purpose is to reduce emissions by re-burning exhaust gas. Exhaust gases are inert (they've already been blown up once) so it actually pollutes your fuel/air mixture a little bit. I was under the impression that, under full throttle, the EGR shut off entirely but (a) I can't actually remember where I read that and (b) who knows if it works identically for all engines.
You don't need it, buy turabaka's blockoff thing and be done with it.
x2.....i told ya so...
200+ ALL MOTOR LS VTEC
I found a couple of articles about EGR system in general here
http://www.asashop.org/autoinc/nov97/gas.htm
and another one on diagnosing EGR system problems on Hondas
http://www.asashop.org/autoinc/nov2001/techtips.htm
I have always wondered how you guys manage to pass emissions without a working EGR. When mine was defective the car failed emissions (high NOx); I got a working EGR out of testing a few in the junkyard and it passed without a problem.
If you boost you may need a different management system but my knowledge stops there so if someone can share how emissions and boost works (or if it is a thread somewhere here) I will appreciate the info.
Thanks
my state doesn't test for NOx so I never have to worry about keeping it low. To pass on the rest of it I just mess with my air/fuel mixture until it passes.
Lostforawhile:we have to pick on him he's CAH he spray painted himself into this corner with the accord.
x2 yo...
200+ ALL MOTOR LS VTEC
Yeah, I suspected that you would not have to bother with emissions inspections.
For those of us that cannot get rid of EGR, another article with general repair information.
http://www.asashop.org/autoinc/dec97/egr.htm
The last part concerns our cars; they have individual EGR passages to each cylinder and over time some may get clogged. The "cure" involves taking the intake out and removing some plugs and cleaning the crud out of each passage.
I even remember reading somewhere about a guy that had undergone the repair and got the replacement plugs from a Honda dealer.
Good stuff Eco. Thanks!
Dr_Snooz
"I like to take hammers, and just break stuff, just break stuff." - Beavis
1989 Honda Accord LX-i Coupe, 240k miles, MT swap, rear disc swap
Shop manual downloads available here: CLICK TO VIEW
You're welcome.
Alright guys here's the pics of my egr block of plates.
New one. Currently the one on my car.
And the old one.
I can make these in either style. Square or cut to generally match the opening. I did both of these with a grinder, and polished them afterwards so it's not exact machining or anything.
There's some water/antifreeze spots on the plate in the first pic so it doesn't look as shiny as usual. I definitely need to wash my engine bay. Maybe that's what I'll do later today.
Lostforawhile:we have to pick on him he's CAH he spray painted himself into this corner with the accord.
yep the carb and efi should have the same bolt pattern . just one has electronic crap on it and one does not . lol
btw when i get me another 3g ill def be buying a block off plate
1988 Honda Accord LX-i Coupe 123k miles.
shit is nOice lol
200+ ALL MOTOR LS VTEC
nice work
1989 Honda Accord LX-i
B18c1 swap since 7/2011
175whp and 132tq
Redzone tuned
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