TPI EGR Question
05-22-2014, 02:41 AM
#1
Member
Thread Starter
Join Date: Jul 2011
Location: Los Angeles
Posts: 178
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 IROC-Z Camaro
Engine: 305 LB9
Transmission: 700r4
TPI EGR Question
Back to egr, if I blow on the one of the bottom holes (not the part that gets vacuum, the holes on the bottom that go to exhaust and intake) of the egr valve I can push a little bit of air through it while the valve is closed. The valve will not leak vacuum if I put a pump on it. I dont want to assemble everything again with a bad part. Do I have a bad valve?
As for the solenoid, it works perfectly, but only has .24 resistance rather than the 30-90 that most people say is good. Is that okay?
*
As for the solenoid, it works perfectly, but only has .24 resistance rather than the 30-90 that most people say is good. Is that okay?
*
05-26-2014, 05:38 AM
#3
Re: TPI EGR Question
Which one of the bottom holes? The EGR should have a negative backpressure pilot valve. That will allow the exhaust side port to flow to atmosphere by the pressure you are applying unseating the negative backpressure internal valve with its fairly light spring. With a negative backpressure valve, vacuum applied to the control port should cause the valve pintle to move.
This link may help: http://www.tomco-inc.com/Tech_Tips/ttt27.pdf
This link may help: http://www.tomco-inc.com/Tech_Tips/ttt27.pdf
Thread
Thread Starter
Forum
Replies
Last Post
1992rs/ss
NW Indiana and South Chicago Suburb
12
05-19-2020 07:02 PM
1992rs/ss
Engine/Drivetrain/Suspension Parts for Sale
16
01-28-2016 09:58 PM
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
08-12-2015 03:41 PM