Has anyone here removed the hard rubber fuel line next to the upper plenum on the passanger side to install an inline fuel filter? I tried to twist it off lightly but it seems like it's glued to the metal pipe and I didn't want to accidently damage the pipe.

Can I just cut the metal pipe and reconnect it with my own rubber line and inline fuel filter? It seems like I would need the end of the pipe for that high rise to keep the hose clamped on and prevent it from slipping off.

 

I wouldn't be messing around with the high pressure fuel lines without carefully reading the service manual for the proper way to disconnect the fittings. Things can get really ugly when fuel starts splashing around the engine compartment while you cruising down the interstate.

Why do you think you need a filter? There's one built into the pump.

 

Redundant fuel filter? Why?

 

I found a lot of dirt cleaning the injectors today. I bought a fuel hose and a fuel filter today. Will install tomorrow.

 

that dirt is going to be prevented by installing another fuel filter - a fuel filter can only trap dirt in the fuel lines, and if you had that much in your fuel lines, your car wouldn't be operational

 

I have a feeling this is going to end badly.

 

UMMMM Yeah no comment on this one!!!

But it is funny!!

 

I found out the fuel line is hard plastic covered in rubber, so I cant clamp on the plastic with a rubber hose. The only part that is actually metal is the Y line that is part of the fuel rails.

I'm just going to try some other injectors to see if that fixes the lean problem.

 

Running better fuel and cleaning the tank would probably be a better idea. If you really want another fuel filter, I'd suggest putting it as close to the pump as possible so that when all the stuff gums up your lines/pump, there's not a whole lot to replace.

 

Lowering the gas tank is a pain in the ***. I am not looking forward to doing that...

 

What's in your gas tank that you're so afraid of? Were you sabotaged??

 

"I'm just going to try some other injectors to see if that fixes the lean problem."

The fuel filter has nothing to do with the engine running lean, and replacing the injectors probably won't help either. The ECU will keep the injectors open long enough to get the mixture correct based on the feedback from the various sensors.

What makes you think the engine is running lean? Are you getting a CEL or any codes?

The most likely causes for the engine running lean (if it's really doing that) would be the mass flow sensor or the O2 sensors.

 

Good point(s) here. Do some component testing to find out what needs replaced, instead of just trying new parts.

 

Need scanner and read datasteam's fuel trim adaptation. I just bought a car with a cat code, i checked the fuel trim and its maxing out the values rich because O2 sensor is seeing all the oxygen from the NOx the cat isnt converting. It will only set codes once it maxes out fuel adaption limits.

Sometimes cars get stuck at the 9999 value and code sets at 10000. Good tech can read the scanners mode 6 data to see codes before they set.

If you can do an emissions test you can plug in the number's at
http://smogsite.com/ to see your lamba calculation.

 

Maybe I am missing the joke here, but that dirt looks like it is on the outside of the injector and a fuel filter is not going to make it better.

 

+1, and inefficient cats (nor test pipes) aren't going to throw the mixture off...the ECU isn't that dumb.

 

The dirt is above the o-ring seal, so it came from outside the engine and settled in above the injector. Any dirt on or below the o-ring most likely came from pulling it through the dirt that was around it. /thread

 

There was some black soot around the nozzles as well which is not pictured.

 

The entire intake system is probably coated with the soot, too.

 

I took off the intake and plenums. It had some oil vapor which is normal.