Injector Cleaning

I got a few misfires again yesterday and this morning and at this point I don't think its a grounding problem or spark plugs as I have changed those 3 times with the proper gap.

I read up on a few things and it looks like it may be just dirty/clogged injectors. The reason I think this is because the car isn't driving the way it did after I got it tuned last fall, it pops at idle and its a little rough if I let all the way off and get back on it again, (no I am not paranoid) some people said that was normal but at this point, no its not normal. I know how the car ran before and it doesn't run like that anymore.

I am currently running injector cleaner through the gas tank and we'll see how that goes but I want to make sure they're clean.

Question: Has anyone cleaned injectors by hand that could walk me through the process so I don't damage it and fuck my engine in the process?

Don't waste your time trying to do it yourself. Send them to witchunter and get them cleaned flowed and tested. That way you know for a fact they are fine. It isn't terribly expensive. They have done 2 sets for me now and the turnaround is insanely fast.

240sxguy wrote:

Don't waste your time trying to do it yourself. Send them to witchunter and get them cleaned flowed and tested. That way you know for a fact they are fine. It isn't terribly expensive. They have done 2 sets for me now and the turnaround is insanely fast.

that or there are a few places around here that can do it too. i'll see if i can get you some names and numbers

^ Nice, I wasn't aware of that.

Ok sounds good, I have heard good things about witchhunter and it seems to be the goto place for subies. I'll call them up and ask. And steve that would be great thanks!

Witch hunter is getting out of the Subaru injector business, just a heads up.

and dont waste your money on in the tank fuel injector cleaners. They dont work

th3franz wrote:

Witch hunter is getting out of the Subaru injector business, just a heads up.

Any particular reason? that sucks...

weavers on the west side. on odana rd 274-8801 26.00 per injector talk to robby

Thanks steve, know how long the turnaround is?

fucking shitty gas, pisses me off. its only getting worse.

i remember when I could run 5+ years on my race snowmobile without having to clean the carbs and now I clean them twice a year!

the stuff u buy at a gas station isnt strong enough. u shouldnt have to take them out. at the shop they pressurize the fuel system with air and run a strong solvent through them. costs about $60 and u dont even need to take them out. usually works pretty good.

3vs197 wrote:

the stuff u buy at a gas station isnt strong enough. u shouldnt have to take them out. at the shop they pressurize the fuel system with air and run a strong solvent through them. costs about $60 and u dont even need to take them out. usually works pretty good.

I agree i don't think all dump in the tank things are weak but most of the stuff at a gas station is.

If you were closer I could do a injector flush at work. Are the 04 sti's a returnless system or not? I know on a lot of returnless fuel systems on subaru's number 4 likes to misfire because of the shitty quality fuel we have now a days. It clogs up number 4 injector and you have to replace that injector and clean out the fuel rail.

I think they are a return system, I could be wrong, I'm sure someone will chime in here about that.

If yours is the same as my bugeye, it is a return system.

Mine are side feed, if that makes a difference.

Mine are top... so I am not sure

fucking subarus!!!!

Seriously dude, best mod for that STi of yours is a for sale sign.

STI has a return for the fuel system.

Let's just say Witch hunter has had some quality issues with their Subaru injectors...

240sxguy wrote:

Seriously dude, best mod for that STi of yours is a for sale sign.

But I like it to much :/

Franze, I'm gonna call that place that steve recommended so I can keep it local and have less down time. thanks for the info.

+1. Before its too late!

overblown wrote:

+1. Before its too late!

What sell it? I don't want to I enjoy driving it to much.