What to replace?
Thread Starter
3rd Gear
Joined: Apr 2012
Posts: 3
Likes: 0
From: Pittsburgh PA
What to replace?
I'm getting my injectors replaced in about a week (Thanks FIC!) while I had everything opened up I was wonder if there was anything you guys recommend I replace or at least look at. I have a 1991 6 speed that is all stock. Thanks for the help!
Racer
Joined: Nov 2005
Posts: 310
Likes: 47
Replace the EGR valve at the same time. Easy access with the plenum off. You may want to buy a can of carb cleaner (Gum Out or Walmart generic equivalent) and spray the chamber below the EGR valve thoroughly to get the 20 year build-up of black crap out of there before you replace the EGR. My mechanic spayed it like crazy and used a wire coat hanger to make sure the passages were clear. Don't forget the buy the gaskets for the plenum and new o rings for the fuel rails. Make sure you test each new injector using an ohm-meter. I know that everyone says that the ones from FIC are fine, but it only takes a few minutes to check and, remember, you and your wallet have to do the replacing if (perish the thought) FIC sent you a bad one.
Last edited by summerst; May 15, 2012 at 12:57 PM.
Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
. I don't think you need to change the egr if its working, why waste a c-note, just depress it to see if it opens. I also changed my stat while I was there, what the hell.
Last edited by caddyboy84; May 15, 2012 at 01:14 PM.
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
While you are there get an adjustbale fuel pressure regulator and new diaphragm. Also, take the time to port and clean up your plenum. Maybe even have it powder coated. They look great when done right 
Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
Yep, yeppers I also did the cap, rotor, plugs ,module and wires.
Last edited by caddyboy84; May 15, 2012 at 01:21 PM.
Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
The more I look back on it, the more I remember. I replaced all the old plastic wire looms and dirty old electrical tape. I removed the square plastic factory wire covers above the valve-covers and the bolts in the manifold. I replaced them with new black wire-loom. Now is the time to do everything that is within reach while it's apart, who wants to take everything apart again to do it all later. I took my time and spent a week getting everything MINT
Racer
Joined: Nov 2005
Posts: 310
Likes: 47
Last edited by summerst; May 15, 2012 at 03:00 PM.
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Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
I guess it dosen't hurt to change the EGR, I guess maybe I should've went with a new one seeing all the money and time I spent, but I try and save some cash when I can. I saved all the parts I changed-out with new ones as spares, at least I know they all work if I ever need something. An engine builder friend suggested doing the intake gasget while I was there, Maybe I should've.
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
.. I started with a leaking intake gasket.. then heads ..now an LSX.. 
Racer
Joined: Nov 2005
Posts: 310
Likes: 47
I guess it dosen't hurt to change the EGR, I guess maybe I should've went with a new one seeing all the money and time I spent, but I try and save some cash when I can. I saved all the parts I changed-out with new ones as spares, at least I know they all work if I ever need something. An engine builder friend suggested doing the intake gasget while I was there, Maybe I should've.
Burning Brakes
Joined: Nov 2011
Posts: 841
Likes: 1
I hate when that happens
My intake wasn't leaking but it would've been nice to really clean it up off the car, though I cleaned it best as I could. The engine was rebuilt in 07 and I guess it could've used a changing. I get CRAZY when I start "going to town" and can't stand the look of a new part against old dirty stuff. This is the recipe for falling into QUICKSAND!!
But it was worth it, the car looks and runs MINT A friend and I argue about this all the time (for years) and I'm a detail fanatic who firmly believes that a car should look as good as it runs. Who wants to open a hood and see a dirty greasey engine?
