EGR Delete
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Trailering
Joined: Mar 2021
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EGR Delete
Hey guys, has anyone done an erg system delete on their trucks, I am looking to put long tube headers on my truck. I have heard of issues with pinging issues arising, what could i do to remedy this? or am I better off leaving that portion of the exhaust alone?
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Trailering
Joined: Mar 2021
Posts: 20
Likes: 0
Hey thanks for the help. One day I am looking at pulling the engine and modifying it, would I have to get a new ECU for it where it would no longer have the egr, also is there a separate computer running the power locks, windows, and Cruise control?
Logistics Pro
Joined: Aug 2014
Posts: 3,556
Likes: 851
Yes and no to the new ECU.
Your options are Tweecer, Quarter Horse, or PimpX.
Tweecer and Quarter Horse they are piggy back chips that go on your current computer.
PimpX is another computer itself.
You the turn EGR off.
I don't think there is a computer for power locks and windows, just switches and relays. If you have the theft control, there is a computer for that.
Yes, seperate computer for cruise control.
Your options are Tweecer, Quarter Horse, or PimpX.
Tweecer and Quarter Horse they are piggy back chips that go on your current computer.
PimpX is another computer itself.
You the turn EGR off.
I don't think there is a computer for power locks and windows, just switches and relays. If you have the theft control, there is a computer for that.
Yes, seperate computer for cruise control.
Thread Starter
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Trailering
Joined: Mar 2021
Posts: 20
Likes: 0
Yes and no to the new ECU.
Your options are Tweecer, Quarter Horse, or PimpX.
Tweecer and Quarter Horse they are piggy back chips that go on your current computer.
PimpX is another computer itself.
You the turn EGR off.
I don't think there is a computer for power locks and windows, just switches and relays. If you have the theft control, there is a computer for that.
Yes, seperate computer for cruise control.
Your options are Tweecer, Quarter Horse, or PimpX.
Tweecer and Quarter Horse they are piggy back chips that go on your current computer.
PimpX is another computer itself.
You the turn EGR off.
I don't think there is a computer for power locks and windows, just switches and relays. If you have the theft control, there is a computer for that.
Yes, seperate computer for cruise control.
Logistics Pro
Joined: Dec 2003
Posts: 3,776
Likes: 862
From: Foothills of NC
I don't think your 1990 will ever know it's gone or blocked. My '87 doesn't know I have a block off plate between the EGR and intake. These models didn't have EGR position sensors. I "think" it was '92 before that started.
Fleet Mechanic
Joined: Aug 2015
Posts: 1,829
Likes: 363
From: Candy Mountain
They do have position sensors, but if you block off the exhaust gas flow but leave the rest of it intact, the valve will still open so it will look normal to the computer. Problem with this as a mod is that the computer will adjust the timing thinking the EGR is open, and may result in ping.
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Logistics Pro
Joined: Dec 2003
Posts: 3,776
Likes: 862
From: Foothills of NC
They do have position sensors, but if you block off the exhaust gas flow but leave the rest of it intact, the valve will still open so it will look normal to the computer. Problem with this as a mod is that the computer will adjust the timing thinking the EGR is open, and may result in ping.
I may have a light on, I don't know. I was replacing bulbs in the cluster last winter when I found I don't even have the socket for the check engine bulb to fit in. Truck runs good, so I figured why mess up a good thing with a light. As long as it runs good, what I don't know won't hurt me...lol
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From: N.W. Alabama
When I blocked mine, when I was chasing a stumble/vacuum leak, and removed the vacuum, I would get CEL, while driving down the road, when I stopped, CEL went off, until I got back up to constant speed, then CEL back on, so I found crack in vacuum line, fixed, then left blocked off, no CEL, when I removed and plugged vacuum line CEL would come back on driving down the road, so my 95's PCM knew when EGR was supposed to move.
Logistics Pro
Joined: Dec 2003
Posts: 3,776
Likes: 862
From: Foothills of NC
As far as I can tell, there's no EGR position on my '87, and I don't think there was until maybe '92. I could be wrong though, as I am many times...lol (at least according to my wife)
Logistics Pro
Joined: Dec 2003
Posts: 3,776
Likes: 862
From: Foothills of NC
Thanks for bringing this up so I can check it out for sure.
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