hi i just made an EGR block off kit and i was wondering do you just plug the EGR vacuum line with a golf tee or something similar or can you disconnect the whole vacuum line assembly under the intake manifold with the red plugs on it? also does it show a check engine code if you disconnect that?
EGR valve ?
- Thread starter MaxBoostedSupra
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You can put a 1k resistor in the connector to get rid of the code. Removing the egr doesn't really do much for performance, but the intake manifold and cylinder head does stay a lot cleaner inside.
thanks for letting me know im just finishing up my rebuild. sorry one more question where is the connector that you put the 1k resistor at? thanks
Aaron does the EGR on a Supra let the chunks of carbon from the exhaust system right into the intake system like they ones on old school cars do? Or have they figured out a way to keep the chunks out and just let the gasses into the intake?
I know that the inside of the manifold gets a fairly thick layer of sludgy crap inside on older engines, especially when they have excessive blow-by. The hole for the egr is out the side of the #6 exhaust port, then it has to go through the egr cooler, then through the valve. I don't think actual pieces of carbon would go through, but the exhaust mixing with the oil coating inside the manifold from the pcv system makes for a nasty mess.
Aaron, thanks for that info, I always wondered if they figured out a way to stop the chunks from being introduced into the combustion chamber where they used to get lodged in between the piston and cylinder wall and do some nice permanent damage on old school vehicles.
So since I have a Turbo Supra that is not a California model, I will not get a engine light or code if I remove my egr valve, egr cooler and put some block off plates on as well? Thanks.
To think it won't be an issue is not correct either. As long as your fuel is good enough to combat the increased chance of detonation, then it won't be as much of an issue.
EGR lowers combustion temperatures, thus lowering detonation.
EGR lowers combustion temperatures, thus lowering detonation.
You can tap the hole in the back of the head and put a 3/8 npt pipe plug in it. For the intake manifold you can cut the flange off the egr valve and weld the little hole closed. Or I think SupraSport sells block off kit.
I have also read that the EGR cooler is a suspect of the hot spot on the #6 cylinder which could also be a contributor of the dreaded BHG. How true is this and if its true wouldnt that alone be worth losing the valve.
It can be a suspect, but it isn't guilty. A coolant mixture will only absorb heat from the engine, not transfer more.mk3forme said:
And EGR lowers the chance of detonation, it doesn't increase. Keep in mind also, that when the computer gives the EGR command, the tables are different. That is why you need to have good enough gas.
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