Sensor under plenum??
Thread Starter
Safety Car
Joined: Oct 2000
Posts: 4,282
Likes: 172
From: Lake Wylie, South Carolina
Sensor under plenum??
I am replacing the injectors on my 1990 coupe after a hydrolock issue steming from either a stuck injector or bad FPR. I am replacing all injectors and putting in a new diaphragm for the FPR.
I have the plenum off and see that there is a sensor screwed directly into it underneath. It had some oil on it. What is that sensor for and should I replace it now that the plenum is already off?
Thanks
Wade
I have the plenum off and see that there is a sensor screwed directly into it underneath. It had some oil on it. What is that sensor for and should I replace it now that the plenum is already off?
Thanks
Wade
Team Owner
Joined: Sep 2003
Posts: 25,361
Likes: 2,729
I am replacing the injectors on my 1990 coupe after a hydrolock issue steming from either a stuck injector or bad FPR. I am replacing all injectors and putting in a new diaphragm for the FPR.
I have the plenum off and see that there is a sensor screwed directly into it underneath. It had some oil on it. What is that sensor for and should I replace it now that the plenum is already off?
Thanks
Wade
I have the plenum off and see that there is a sensor screwed directly into it underneath. It had some oil on it. What is that sensor for and should I replace it now that the plenum is already off?
Thanks
Wade
Thread Starter
Safety Car
Joined: Oct 2000
Posts: 4,282
Likes: 172
From: Lake Wylie, South Carolina
If the other one is still good then I will throw it in a drawer incase of emergency.
W
Race Director
Joined: Mar 2015
Posts: 15,926
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and change the oil do not want a grenade. 
Team Owner
Joined: Jul 2004
Posts: 28,363
Likes: 3,255
From: Hartford WI
If you are there already, I would.
Thread Starter
Safety Car
Joined: Oct 2000
Posts: 4,282
Likes: 172
From: Lake Wylie, South Carolina
I have the rail off, new injectors in and FOR diaphragm replaced. Looks like 2 injectors were changed. Those are missing the lower clip. One is missing upper and lower. Where can I get these
Can the injectors be installed without them since the rail zits on top?
Getting oil this morning and looks like valve cover gaskets. 1 has a bad leak. Felpro rubber?
Last, is it possible that the oil pan was filled with so much gas that it either started coming out of the dip stick tube to block or blew a front rear seal.? Bottom of motor is covered and dropping a bunch on the floor especially when I jacked up driver side up. This is completely new.
W
Can the injectors be installed without them since the rail zits on top?
Getting oil this morning and looks like valve cover gaskets. 1 has a bad leak. Felpro rubber?
Last, is it possible that the oil pan was filled with so much gas that it either started coming out of the dip stick tube to block or blew a front rear seal.? Bottom of motor is covered and dropping a bunch on the floor especially when I jacked up driver side up. This is completely new.
W
Team Owner
Joined: Jul 2004
Posts: 28,363
Likes: 3,255
From: Hartford WI
I have the rail off, new injectors in and FOR diaphragm replaced. Looks like 2 injectors were changed. Those are missing the lower clip. One is missing upper and lower. Where can I get these
Can the injectors be installed without them since the rail zits on top?
Getting oil this morning and looks like valve cover gaskets. 1 has a bad leak. Felpro rubber?
Last, is it possible that the oil pan was filled with so much gas that it either started coming out of the dip stick tube to block or blew a front rear seal.? Bottom of motor is covered and dropping a bunch on the floor especially when I jacked up driver side up. This is completely new.
W
Can the injectors be installed without them since the rail zits on top?
Getting oil this morning and looks like valve cover gaskets. 1 has a bad leak. Felpro rubber?
Last, is it possible that the oil pan was filled with so much gas that it either started coming out of the dip stick tube to block or blew a front rear seal.? Bottom of motor is covered and dropping a bunch on the floor especially when I jacked up driver side up. This is completely new.
W
L98 never did have a history of dryness. I watched my tech seal it when I had arm surgery. Did EXACTLY the same thing both times and 3rd time was the charm.
Anything is possible but lets start with cleaning the motor up after you seal the VC and see where it leaks from with dye.
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Thread Starter
Safety Car
Joined: Oct 2000
Posts: 4,282
Likes: 172
From: Lake Wylie, South Carolina
HOLY CRAP!!!! Just drained the oil, came out thin with a strong smell of gas. It filled up an entire drain pan and a 1/4 of another!.
Filter is off I am leaving it off and the drain plug out while I am more putting everything back togather. As slow as I am it will probably be 24 hours.
The motor is soaking in engine degreaser now.
Filter is off I am leaving it off and the drain plug out while I am more putting everything back togather. As slow as I am it will probably be 24 hours.
The motor is soaking in engine degreaser now.
Last edited by ImBatman; Nov 11, 2016 at 12:37 PM. Reason: Wrong words
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From: Kingman AZ
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Per Jon at FIC it is ok to leave the clips off. During assembly the fuel rail and injectors rode on an overhead line. The clips kept the injectors from falling out during their ride. The clips that hold the harness to the injectors should remain in place though.
Team Owner
Joined: Jul 2004
Posts: 28,363
Likes: 3,255
From: Hartford WI
HOLY CRAP!!!! Just drained the oil, came out thin with a strong smell of gas. It filled up an entire drain pan and a 1/4 of another!.
Filter is off I am leaving it off and the drain plug out while I am more putting everything back togather. As slow as I am it will probably be 24 hours.
The motor is soaking in engine degreaser now.
Filter is off I am leaving it off and the drain plug out while I am more putting everything back togather. As slow as I am it will probably be 24 hours.
The motor is soaking in engine degreaser now.
Thread Starter
Safety Car
Joined: Oct 2000
Posts: 4,282
Likes: 172
From: Lake Wylie, South Carolina
I am still speechless about the amount of fuel in the pan. It was essentially filled to the top. No wonder there is oil all under the car. It looks like it was coming out of the dip stick.
SCARY!!!!!!!
Wade