EGR Simulator
Registered User
Joined: Dec 2007
Posts: 36
From: HOUSTON, TX
Lear to share....
Could any of the gentlemen who have completed this procedure please post the part numbers and a short procedure here?
I'm sure there are MANY LT owners who would appreciate this info.
I'm sure there are MANY LT owners who would appreciate this info.
Administrator
Joined: Nov 1998
Posts: 71,098
From: Hell was full so they sent me to NJ
If the code is correctly deleted from the PCM with prgoramming, it will not cause a "system not ready" flag. Much easier and cleaner than wiring the resistor so its pulled into the MAP sensor circuit when the EGR vacuum solenoid is pulsed.
Not likely that you're going to get much in the way of responses from people who participated in a thread nearly 7 years ago.
Not likely that you're going to get much in the way of responses from people who participated in a thread nearly 7 years ago.
Registered User
Joined: May 2021
Posts: 1
Re: EGR Simulator
I made my own "EGR simulator" using a vacuum switch and some resistors. Basically, instead of the vacuum line going to the EGR valve, it goes to a vacuum switch. When the PCM commands the EGR valve to open, the vacuum closes this switch. I have some resistors connected from the 5 volt reference from the MAP sensor to the vacuum switch and then to the signal wire. When the vacuum switch closes, it increases the voltage signal to the computer and the computer "thinks" the EGR valve opened. I have been running this for over 3 years on my 96 (OBD II) and have NEVER had a PO400 code. I don't even have the tube from the passengers side header to the back of the intake on my car. I made everything just plug in, I did not cut any wires so that returning to stock would take about 1 minute. Probably less than $20 in parts.
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