Engine won't reach 2000 RPMs under load

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Originally Posted by David T

Once you have a good, clean set, you should be fine.

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That's reassuring, at least.

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As for cleaning injectors, I have been able to do it successfully and so have the venders. It is at least worth trying and any bad ones can be replaced. Worst case you may need to replace 1 or 2 but in all probability your old ones should clean up.

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I'm certainly willing to try it; I don't suppose I could send my injectors to you for cleaning, could I?

I called Rob Grady to ask about injectors. He was also of the opinion that cleaning probably wouldn't work too well, but he also warned that he's heard that Bosch is discontinuing them and that it's going to become difficult to get new ones in the future.

Rob also agreed with others that the screen in the fuel tank was likely clogged, and suggested that I pull the pump and check. I haven't actually done this before, although he pointed out that it'll probably be a less suspicious job to the condo association than the fuel injector work, since it'll just look like I'm cleaning the trunk to a casual observer. I'd still like to limp it to the garage, if I can figure out how to get it up the short driveway and over the 1" lip without power.

Thanks!

-- Joe

WOW.... You own a Delorean and don't have Triple A??????:hihi2:

Craig

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Originally Posted by jangell

Bosch is discontinuing them and that it's going to become difficult to get new ones in the future.

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Bosch: 0437-502-013
Bosch: 0437-502-022-751-014

Check the connector to your CPR. I had one of the connectors back out and another time it was corroded through. It caused my care to accelerate VERY poorly and run as if a cylinder was missing. When hot, it ran slightly better but not great. Once I fixed the connector and had the correct signal running through the CPR it was better.

Also, a very fouled up O2 sensor may cause it as well I believe.

Just my 2 cents.

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Originally Posted by Silverbullet

WOW.... You own a Delorean and don't have Triple A??????

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AAA Plus. :) The actual problem is getting it INTO the garage. It's right at the edge of the sidewalk, has ~1" of lip between the sidewalk and the garage floor, and is up a slight incline. I think the turn is too tight for the tow truck to drop it right in the garage. I usually need to gun it a bit to get it over the lip, and at only 1500 RPMs that's not going to work. Although I have come up with a cunning plan: I pull up to the lip, then jack the car up, slide some boards under the wheels, and roll right off into the garage. Then I just have to repeat for the other tires. It should work, anyway...

I did want to do a winch, but at the moment the only thing I could attach it to would be the wall studs, and that doesn't seem wise...

-- Joe

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Originally Posted by Ron

Bosch: 0437-502-013
Bosch: 0437-502-022-751-014

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I did see those in the cross reference. I'm kind of disappointed that I can't find a button to click to buy them online (or at least so I could see other prices on them), but that seems to be the way of such things. I'm guessing Houston still has them in stock, though.

-- Joe

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Originally Posted by googoofan5

Check the connector to your CPR. I had one of the connectors back out and another time it was corroded through. It caused my care to accelerate VERY poorly and run as if a cylinder was missing. When hot, it ran slightly better but not great. Once I fixed the connector and had the correct signal running through the CPR it was better.

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That's interesting; I didn't think to look at that. I'll check it more thoroughly next time I'm at the engine bay.

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Also, a very fouled up O2 sensor may cause it as well I believe.

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My O2 sensors is about a year old (I replaced it when I put in a SPEC I exhaust), so I don't think it's that.

Thanks

-- Joe

Joe,

Unless you started with a dirty glass, that milky stuff in your wine glass is not fuel. Is the photo with the running fuel line current or 8 years old?

Do you live alone? Do you have more than one car? Is it a steep incline leading up too your garage floor? How long is the driveway length in front of the garage? The delorean rolls very easily with a couple people. slight inclines and the 1" lip should be now problem if you have any kind of rolling momentum. I have, in a pinch, loaded a car on trailer with Manual transmission just by cranking the Starter with it in first gear. I would think that if the car runs at all ,even if only 1500 rpm, you should be able to move it under its own power unless you have 20% up slope to you garage.

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Originally Posted by DMC5180

Unless you started with a dirty glass, that milky stuff in your wine glass is not fuel. Is the photo with the running fuel line current or 8 years old?

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Hmm... I may have tainted the sample with the glass. After I'd used them the first time to test the injectors, I rinsed them out and left them in the sink. When I shot the video, I used the same still-wet glasses. It's quite possible that all the water came from there. I'll do another test tomorrow with clean, dry glasses to be sure. Sorry for the confusion.

The photo of the running fuel line and the jar full of fuel is what actually came out of my fuel system 8 years ago.

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Do you live alone? Do you have more than one car? Is it a steep incline leading up too your garage floor? How long is the driveway length in front of the garage? The delorean rolls very easily with a couple people. slight inclines and the 1" lip should be now problem if you have any kind of rolling momentum. I have, in a pinch, loaded a car on trailer with Manual transmission just by cranking the Starter with it in first gear. I would think that if the car runs at all ,even if only 1500 rpm, you should be able to move it under its own power unless you have 20% up slope to you garage.

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I live with my wife, but we're both kind of recluses, so we don't tend to have many people around to help us out, and the garage I rent is about 20 minutes away. I have pushed the car up a shallow incline with two or three people into my dad's garage before, but the lip on the rental garage combined with the slope of the sidewalk that you cross into the the garage is significant enough that I scrape the bottom of the car slightly pulling in (lowered front suspension; I have to back it in to clear the lip at all, and even then I put boards down that I crudely cut ramps into to make it easier to get up). Hmmm... perhaps it's a 2" lip; I never actually measured it...

We do have a "practical" car; I briefly considered pushing one car with another, but that seems like a bad idea. Also, I'm not sure there's enough room to line up the two cars; with my back wheels at the lip, the nose still sticks in the street a bit.

Mine's an automatic, so I can't use the starter trick to move it, but I'm impressed you could get it onto a car that way.

I have a rather poor correlation with how full the tank is to how poorly the car performs. I'm tempted to put five gallons of clean gas in it to see if I can get 3000 RPM, at which point I might be able to get the car to the garage under its own power. That'll have to wait until the weekend, though, and I'll have to drain it back out to clean the tank. Hopefully this heat wave will break by then...

-- Joe

I finally figured out how to use my fuel pressure test kit again (it's adaptors 76 and 77 in the OTC 6550 kit, in case anyone else needs it). The result is ~69 PSI (4.75 bar) with the valve closed, and ~47 PSI (2.5 bar) open (car off in both cases, full pump running via jumped RPM socket). It's a touch low, but pretty close to the 70-72 PSI listed in the workshop manual. It's ~92 degrees out today, although I imagine that would only affect how quickly the CPR warmed up. I didn't do the CPR pressure test.

I also kept the fuel that drained out of the pressure gauge. I let it sit for a while and took some pictures. Assuming that there wasn't bad gas in the pressure regulator, it looks like water(?) is mixed with the gas. Any idea how that even happens?

I pulled my injectors so I can send them off for cleaning, so I likely won't be trying to drive it to the garage this weekend, but I may try cleaning the fuel tank in the parking lot after all. I hear it can be tricky getting the fuel pump in correctly; guess I'll find out.

These picture show the gas/water(?) mix, the primary pressure reading, and the fuel injectors ready to be shipped out.

Attachment 20544Attachment 20545Attachment 20546

Thanks again everyone. I'll report back once I have the car together again.

-- Joe