It looks like the valve has either leaked or something cause there looks like fluid around and close to it. If its bad could that be a reason that i smell gas in my car?

 

Sure.

 

Aw darn cause that is a pain in the **** to get to.

 

It's not that hard to remove the fuel rails. Some find it easier to remove the rails some prefer to do it with the rails on. You may want to remove the whole thing and make sure it's the regulator and not one of the other fuel lines connected to the rails that is leaking.

Removing it isn't that hard. First, release the fuel pressure. You can simply hold down the fuel pressure check valve and it will release all the pressure.

Get a fuel rail disconnect set which you can pick up at any auto store and disconnect the fuel rails. Next remove the four bolts which hold down the rail and it pulls right out. Make sure the rubber o-rings are still on the injectors.

Using a torque socket remove the regulator and put a new one on. Might as well make it an adjustable one. If you don't have a '93 it's pretty useless but I'm sure the price of a stock unit is comparable to that of an adjustable one like the one Hypertech makes.

Clean off the injectors with some gasoline because usually you'll see some dirt around them. Apply some motor oil to the injector o-rings before reinstalling in reverse order.

 

If i might ask, i own a 94, why wouldnt it make a differance? Thanks in advance, prorac1

 

The 94+ PCM's monitor the fuel pressure. When the fuel pressure is changed the PCM adjusts the fuel injectors to account for it. At first you'll notice a gain in HP but as the PCM adjusts itself you lose that gain. The '93 year doesn't have the ability to do these adjustments.

 

Ok i will give it a shot this weekend when i have a little more time and cash, hehe. Thank you for the info i will try it and if i run into any problems i will let you know.

 

Here's a tip as well. Disconnect the fuel lines before removing the fuel rail bolts. It makes it much easier as sometimes where the fuel lines disconnect is a PITA to get lose.

 

Ok but wont fuel go everywhere? cause i changed my fuel filter and fuel went everywhere.

 

You need to release the pressure first. Find the pressure check valve. Put a rag around it and push down on it. Fuel will come out. Just hold it down until it stops coming out. If you have a fuel pressure check gauge just attach it and usually they'll have a run off hose that will direct the fuel into a bottle. Keep doing this until fuel stops coming out and then you'll have released all your fuel pressure.

When changing anything related to fuel you will want to do the same. Fuel filters, fuel pump, gas tank, fuel regulator, etc.

There will still be fuel in the lines so expect some to come out.

 

so if you want to put an afpr on lets say a 95z it wouldnt matter?
just curious cause i have one that came with my car but not installed. what else would i have to do?

 

I believe you can get some tuning to your PCM to make it work. Contact PCMforless.com or madz28.com and see what they say.

 

Ok im not to smart about this but where is that release valve at?

And i heard that the adjustable on really wont do much good, is that totally true?

 

It's located behind the manifold near the regulator on the drivers side I believe. There's a plastic screw cap on it that needs to be removed. Follow the fuel lines and you'll find it.

 

ok cause i have seen the 2 fuel lines that go im guessing into the fuel rails, but im sure its around there somewhere. Will i need a towel or a rag? hehe