I feel ya there! I may not be married but I am buying the bike from my mother..... Just imagine what she thinks/feels on this issue. But the bike I am getting is a Suzuki Marauder 800 that has had a few small mods done to it. Larger jets in the carb then tuned and had the sprockets changed out. Going to take the test to get my motorcycle endorsement on my license this week then should be able to pick up the bike this coming weekend. I'm really excited. It should keep me from trying to rush on the Porsche and mess it up.

Wasn't able to stop for the seafoam this afternoon, but I will definitely grab tomorrow. About how many RPMs should the car be idling at generally? Right now it's around 400 which seems low, then it sputters to a roar when gas is given. I've read mixed things about possibly replacing the fuel filter. I had a new pump put in recently, but not the filter. This is kind of how it was running before I started this shindig, so I don't think it has to do with the replaced fuel line. The exhaust is also smelling pretty potent. I don't know if rich is the word to describe it, but it certainly stings the nostrils a little more than normal (Also something it was doing prior to the project).

I dont know if mine idles fast, but it runs at about 1000. 400 seems rather low....That would explain why it is running so rich. Does it have any vacuum leaks?

A new filter wouldnt be a bad idea, but the sea foam would clean the one you have now out pretty good. If the fuel filter was stopped up, it would be starving for fuel, hence it wouldnt be running rich. Is it running on all 8? That could be some of the problem.. Maybe the oxygen sensor is bad, causing it to tell the computer to make it run rich? It could be numerous things..

As for your previous post - Yes, pour the seafoam into the oil. It says how much to put in on the back of the can, but i think its like 1oz per quart. Im not sure if that much is necessary, though.

As far as I can tell, she's firing on all cylinders, but how would I confirm? Did it sound strange on the video I posted a few posts back? Same for a vacuum leak. I think I'm good but I can't swear 100%. How would I confirm that? Unfortunately, the laptop I have my WSM on is giving me crap so I haven't been able to reference it lately to troubleshoot things, I've just been trolling the forums. I'm a Mac guy, so while they are great and hardly ever break, when they do it's expesive as hell to fix. From what I've been reading, it may also be the temp sensor II (?). Is that the one on the waterbridge? I'd like to try and come up with a hierarchy of possibilities (cheapest to expensive) and start knocking them off one by one until it's resolved.

Run it a little bit so you can get some color on the Spark Plug ends. If she is not firing on a cylinder, it will be clean either by no fuel or no spark.

To confirm thats its running on all (or most) cylinders, just listen to the engine. If it is running smooth and not shaking, more than likely you are running on all of them. In the video you posted, it sounded like it was running fine, but when you look at the tach it was also idling just below 1000, not 400. Mind posting us a video of it running and you giving it some gas? Might help us identify the problem.

If you hear any hissing noises or something sounds like its sucking, you have a vacuum leak.

As for the temp sensor, a while back on my 280zx, i put in a fresh set of injectors, and in doing this i knocked the connector off of the temp switch. When i started it, it ran like hell and idled at 400 or so RPM. When i finally realized what it was, i hooked it back up and it started and ran like a champ.

Also, MPDano, if the plug isnt firing, it will be black, and the ones that are will be white. If its wet or soaked in fuel would be another indication that it isnt firing.

Are they new plugs, or the ones that were in it while it sat? If they are old, pull them out (Dont get the spark plug wires out of order..) and clean them with some carb cleaner and a wire brush.

Good luck

It does look like 800 rpm or so, huh? Yesterday when I moved it, I could have sworn it was much lower. Plugs and wires are new. The engine sounds pretty smooth, there is no noticable shaking of the engine when your looking at it, however, there is a slight motion you can feel in the driver's seat. This afternoon, after I dump the seafoam in, I'll take a video of it running with some revs and post.

The wife might be taking the boy to the shorehouse this weekend so I may have plenty of time to diagnose this thing and bang out some other projects as well. Pulling plugs to make sure all cylinders fire will be on the list, and I'll start checking for vac leaks. I'll rule out the free fixes before I start dropping coin again. Thanks for the responses guys!

If it has new plugs and wires, and its idling smooth, i dont think they are the problem, but it still wouldnt hurt to check. When you are in a car, there always seems to be a slight motion that you will only notice when you are looking for one. Hopefully the video will help us identify the issue. While you are taking the vid (If you havent already) Can you slip in whats coming out of the pipe, and let us see what it sounds like under the hood? Thanks!

After you put the seafoam and run it a bit, sitting overnight should clear things out overnight. This may not solve your problem, but it sure as hell wont hurt anything! After i put some in my 67 Chevelle ss 396, it boosted the MPG from 16 to 20, so it may help your current MPG as well.

OK, so I have some cinema for you. The 1st vid is of the engine running. You'll notice when it first starts, it almost dies out, then jumps back up. It settles in around 600 (or 800? there's only 3 notches before 1000rpm). I then take you under the hood for a few, then back in to rev it. While it's revving, my arm is resting on the edge of the door, and you'll notice how much it shakes each rev:

<iframe width="560" height="315" src="http://www.youtube.com/embed/EjCasvpu4ck" frameborder="0" allowfullscreen></iframe>

This second quick one is close to the intake. You can hear a super-annoying high pitch hiss, so I'm guessing that's a full on vacuum leak:

<iframe width="560" height="315" src="http://www.youtube.com/embed/5w4pn8Jko6I" frameborder="0" allowfullscreen></iframe>

Lastly, here's a pic of what came out of the exhaust, tail pipe would be at the top right of the image:

http://forums.pelicanparts.com/uploa...1339542273.jpg

It looks like dirty water, and I can't imagine that's a good thing. Fire your thoughts my way guys! Thanks.

The gauges look fine, and it looks to be idling around where it should. When you are revving, it looks like you are only hitting on 5.. May be dead plugs, or clogged injectors. Did you clean them? Also, when you took us under the hood, i thought i could hear a TICK TICK TICK noise, and sure enough when you showed the vacuum leak, i heard it again but much louder. You have a lifter that isnt pumping up. Have you already put the Sea Foam in the tank/oil? If you havent, do it. My dads 944 was making the same sound from the engine and seafoam fixed it.

As for what looks like dirty water- Does it smell like gas? Also, on the 944, once some seal went out and the oil and water were mixing. What does the oil look like?

The injectors were sent to witchhunter and cleaned up. The dirty water actually doesn't smell like anything, definitely not gas. I put some on my finger and basically had it jammed up my nose and it literally smells like nothing. There is indeed a ticking noise, so hopefully the Sea Foam fixes it. I stopped at advance auto parts on the way home and they only had seafoam spray. Is it supposed to be spray? I was looking for something that would pour in. I can try autozone tomorrow. The oil is good, but low apparently. I changed the oil when I brought it out to my house in September or so and put a full 8 quarts in, so that might be leaking out of somewhere too. Also, how can you tell it's only hitting on 5? Meaning that it's running on all 8, but only 5 when I rev?

Has the distributor been out? It sounds like its off. I would really closely check both the cam timing and the ignition timing, just to be sure it's on time.

Also that tick sound almost sounds like a spark plug wire to me. Hard to tell with my speakers.

You have gotten a long way with this car !

:cheers:

Sounds like a lifter to me....sea foam should help, both gas and oil...you want the pour in kind....also sounds like there might be a vacuum leak.

Man great to hear it.....maybe I can get mine to make similar noises in a couple months....

Its supposed to be a pour bottle. Autozone will have it for sure.

It sounds like (My speakers arent great) when its idling, its missing on one or two. But that shake when you revv sounds like its hitting on less. When i first got mine running, it sounded like it was hitting on most of them when it was idling, but when i revved it up, it sounded terrible. I then saw that 4 of the fuel injector wires were disconnected...

The timing might be off, so that wouldnt hurt to check.

It's missing for sure. Are you sure your firing on all cylinders? Noid light to verify "all" Injectors are firing. You can use a Timing Light to verify spark on each wire. Fuel Pressure?

Your idle rpm is fine. For what it's worth, mine is around 500, 400 in Gear (Auto). Mine is a little low, yours is set just right.

Well, I can't swear with absolute certainty that all cylinders are firing, so I'll be picking up a noid light to check the injectors. Is there any one in particular, or are they pretty generic? With any luck, maybe I just didn't push a few connectors on all the way.

I'm not sure the fuel pressure either. I would need to get a tester to check it, what's the best way? The workshop manual details a procedure where you remove the cap at the end of the passenger side fuel rail, and I also read another where you can remove the vacuum hose from the front fuel pressure damper and check it there. I guess it depends on the tester. What is the spec PSI?

I will also check the timing marks just to be sure all is on point. The upper radiator hose seems to be in the way of the driver's side TB cover, do I have to remove it to pull the cover, or should I just be able to maneuver the cover out? Next week, I'll probably start going through the motions of getting her insured and registered so I can at least get it out for a spin around the neighborhood. Hard to get a sense of how everything is when I only have my driveway as a test track. Thanks for the tips, I'll be trying to get answers to all your questions this weekend, and I'll definitely have a camera on stand-by.

When i was testing for power at the injectors on my 928, i went to autozone and they had test lights that fit the injector wires.

I dont know about the rest of the stuff..

OK, I got some stuff for you guys. Got a lot accomplished tonight, so here we go. First, I stopped at Autozone and grabbed a bunch of stuff. They had noid lights to rent, so I grabbed them (You get the money back when you return them so that's pretty good). I can confirm 7 of 8 injectors are definitely getting juice. I didn't check the #4 cylinder because I just couldn't wiggle my fingers in there to grab it and I really didn't want to start pulling too much stuff apart, so I'm playing the odds and betting all 8 are firing.

Timing. I'm all lined up. The TB covers were being a pain so I moved them enough to check the marks.

http://forums.pelicanparts.com/uploa...1339730230.jpg

http://forums.pelicanparts.com/uploa...1339730322.jpg

Kind of hard to see this one, but it's there
http://forums.pelicanparts.com/uploa...1339730373.jpg

http://forums.pelicanparts.com/uploa...1339730415.jpg

I picked up some of the Sea Foam and dumped some in the tank as well as the crankcase (oil was 3 quarts low, so I topped it up). Started her up and let her go for a little while. It sounds much better, the ticking has subsided for the most part, I can still hear a little and I'm quite sure there are vacuum leaks. Didn't get a video, but I'll try and grab one tomorrow.

Finally, I got to work on replacing my front shocks so I can get the grill and spoiler back on. mrmerlin was 100% correct, these were done.

http://forums.pelicanparts.com/uploa...1339730689.jpg

http://forums.pelicanparts.com/uploa...1339730749.jpg

Tomorrow I'll be putting the new shocks in and putting her all back together. If I can do the spoiler tomorrow night too, I will, but I think that may be a job for Saturday. Getting close!

You mention your injectors have "juice".
Do you mean the noid flashes on 7 of the 8 connectors? OR did you see constant voltage from one connector terminal to ground?
It was inconvenient to remove the connectors on mine as well.
That is why I retro'd to the "audi" connectors.