Silvia stranded in AZ

[Calum Day]

Ok, so Im a SoCal member and recently drove my 240 to AZ to visit my girlfriend for her birthday and such. Everything went fine and on the drive back I was noticing kind of a power draw back. Id decelerate during acceleration and my car would kinda push forward and pull back type of feeling.

I pulled off the freeway and parked, popped my hood while the turbo timer was running and noticed alot of black soot coming out of my exhaust and really low and rough idle.

Ive had one friend tell me it sounds like I dropped an injector. Then another friend told me I wouldnt have the black soot with an injector and its possibly just a clogged fuel filter and fuel pump.

I already bought an upgraded fuel pump and fuel filter, but before I go back to AZ to do the repairs, could it possibly be the injectors too? And should I bring some to install?

Thanks in advance, Wes.

[Lucian_rider]

Black soot is an excess of fuel, a clogged fuel filter or malfunctioning fuel pump would lean out the mix so no black soot under those circumstances.

It sounds like an injector could have stuck open if that is possible which would dump fuel into one of the cylinders, this would probably pass through the cylinder and would be burned in the exhaust which again could lead to the soot you saw.

I would pull the plugs to find out if it is one cylinder only and if so change the injector on that cylinder along with the plug. A fouled plug or plugs might cause something similar as well.

Lets see what others think.

Regards,

Chris

[Calum Day]

Well, the reason Im doing fuel pump and fuel filter first is obviously cause its the cheaper repair.

But I dont want to fly out to AZ with the, do the repairs then get the same problem and not have the money on me out there to buy injectors.

Also, I currently cant pull the injector's to look at them cause my car is 400 miles away. So Im going on blind theory here.

I know its a fuel delivery problem, as far as what it is, Im not sure. I have alot of different opnions.

Thanks alot Chris, Immakeep getting some other opinions (:

[912.0turbo]

Do what chris says and also check for a boost leak somewhere. That also has similar symptoms.

[Calum Day]

I dont think Id be getting the black soot out of my exhaust with a boost leak. Although I did think of that, thank you (:

[Calum Day]

Any other ideas people? Id hate to go all the way back out to AZ and not even be able to bring my car back?

[Lucian_rider]

You didn't top up the tank with diesel fuel by any chance

[Calum Day]

Unless AZ is playing a really mean prank by switching 91 with diesel, I dont think so o_o

[Calum Day]

Unless AZ is playing a really mean prank by switching 91 with diesel, I dont think so o_o

[Onizuka]

Well, it looks like your options are to either buy some or all of the possible bad parts, tow your it back or limp the car home.

If it were me, I'd probably just drive it home carefully, keeping good eyes on all guages and ears sharp for funny noises.

[scottsnissan]

have u always used 91 cause i use 93(was told 91 isint good do to low octain)

[nonvtecaccord]

he's from California, 91 is the highest octane they have at the pump...see east coast is good for something.

[Morph]

he's from California, 91 is the highest octane they have at the pump...see east coast is good for something.

Wow and ur paying like 6 bucks a gallon. Lol

[Calum Day]

I have no idea how that got posted again

[Calum Day]

Like 2.53 for 91 out at the CA/AZ borded in Blythe, I paid 2.95

[Calum Day]

Already ordered Walbro upgraded fuel pump and fuel filter, just hope it isnt the injectors.

Driving it 400 miles with my car in this condition is not an option.

[Nismo_Freak]

Already ordered Walbro upgraded fuel pump and fuel filter, just hope it isnt the injectors.

Driving it 400 miles with my car in this condition is not an option.

Why don't you listen to people?

You are making the problem worse and wasting your money by buying those components.

How about you explain the situation in depth... cause black soot out the exhaust could be a number of things.

Does the car misfire? Does it idle?

C'mon we can't help you with no knowledge of the problem.

[slow s13]

Is your car sitting along the roadside, is it safe? You could drive back and it could be gone, for your sake I hope the cops towed it.

[D1 guy]

HOLY CRAP!!!!Im paying 2.20 for 93 and 3.40/gal for 110.....You all should move to mississippi and start a revolution!!!! Join our group of only....uhhh.....10 or so imports..lol..

[Calum Day]

I dont think replacing some parts will really make it any worse, thats just foolish. If its not that, then the cars not fixed, atleast those parts a new. As far as money goes, what I paid for a fuel pump and fuel filter isnt really a problem.

The car has a really rough idle and bounces from 3-400, however it does not misfire.

How about some actual advice now instead of just being angry for buying parts.

[Calum Day]

Its in my friends driveway, Im pretty confident the cops arent towing it anywhere.

[ItzGenX]

HOLY CRAP!!!!Im paying 2.20 for 93 and 3.40/gal for 110.....You all should move to mississippi and start a revolution!!!! Join our group of only....uhhh.....10 or so imports..lol..

Where in MS are you? Cheapest around here lately is around 2.35+/gal.

Anyway, back on topic, have your friend check the intercooler pipes. You can always have the friend also check out the 4 plugs (keep them sorted to their respected cylinder). The friend can give u pictures or a heads up on if anything was found funny. If all four plugs look exactly the same, then it wouldn't be an injector flipping out. Also, an intercooler pipe can blow off without you ever knowing it. During boost, it can pop out the coupler and then sink right back in during vacuum so that it wouldn't be noticed at a glance. Also, couplers can literally blow out (I've destroyed two so far), and you won't be able to see the blown out portion unless you feel for it. I recommend having the problem further looked into. Fuel pump and filter would do what the other guy posted earlier, lean out.

[ca18det_boy]

How about some actual advice now instead of just being angry for buying parts.

whoa, easy there tiger.....I'm not baggin on you or anything like that but some free advice is don't bite the hands that feed you. There's alot of info and well respected people on the board. I understand your frustrated at the situation but be careful what you say on the net, most people can't tell when your joking or being serious.

On a side not if you get out there and the pump and the filter don't do it try playing with the CAS and see if that helps out at all.....not saying its a permanent fix but might make it a little better till you get home.

[Teamsprock]

First thing you need to do is find out if all the spark plugs are all black or just one! then once you find that out there are many possible situations! If they are all black it could be, Boost leak(dumps fuel for air not there), fuel pressure regulator is broken(stuck close causing higher pressure), bad Engine Coolant Temp sensor, etc. If its just one fouled plug could be leaky/grounded injector, simply a fouled plug, no compression, no spark, MAF dirty, ETC. I don't recomend just "playing with your CAS" there is no reason to set things in the wrong place to mask the real problem, that could hurt things much worse! If you can get your friend to look at the plugs let us know what he finds and that will make it easier to find the problem! Fuel pump and filter are going to lean it out like everyone said, and lean means no carbon deposits from the higher heat!

[ca18det_boy]

not saying its a permanent fix but might make it a little better till you get home.

[Teamsprock]

I wouldn't do it even for a short drive! That's just me but I would rather try and fix the problem or get a trailer to get it home! randomly changing the timing doesn't seem like a good fix, and I don't think it will fix his problem anyway, I hope I don't seem like I am trying to be rude! If its an injector staying open or no spark or something like that it will not make it run better and the working cylinders will be way out of wack! I'd just hate to see him hurt something especially if its something simply to fix! If you can find out what the plugs look like that will help make the trouble shooting a lot easier!