Engine turns over but no purr

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Alas, woe is me. I found one of the reason for the start failure.



I replaced the fuel injectors with a nice lightly used set off ebay. They looked pristine! I am happy with the purchase. I am not happy the boat did not start. I took the fuel rail off again to see if the newish injectors were spraying fuel and they are MUCH MUCH better than the old ones. While I had them just outside, the boat did fire up. When I bolted the rail back down the boat turns over with the same boring non-engine sound.

I did get a fuel pressure gauge and I will have to rig something to "tap into the line."

Woe is me :-(

 

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The saga continues: Here is the latest evidence. Once I adapt my fuel pressure gauge I will be able to tell if the fuel pump is starving the other two. So do you think there is something trapped in the fuel rail? Maybe the cause of the injectors going "pop"?

[video=youtube_share;x3az-6HMS1o]http://youtu.be/x3az-6HMS1o[/video]

 

[Sportster-2001-951C-Stock]

The saga continues: Here is the latest evidence. Once I adapt my fuel pressure gauge I will be able to tell if the fuel pump is starving the other two. So do you think there is something trapped in the fuel rail? Maybe the cause of the injectors going "pop"?

[video=youtube_share;x3az-6HMS1o]http://youtu.be/x3az-6HMS1o[/video]

Something trapped, injectors popping? Such as water or air? Air should purge out quickly, that leaves water?

 

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OK here is the results of last nights diagnostics. I tried to install a fuel pressure gauge and had issues with that. I got one from Auto Zone which has a schrader valve connection. I tried to cobble something together to cut into the fuel line. Alas, that did not work as the connection to the fuel gauge is a compression fitting. Well once turned on, it sprayed fuel all over the place. So if you are getting a fuel pressure gauge by a kit that can cut into a fuel line.

So the next thing I tried was my noid light set. And that is where I found the issue. So fuel injectors 2&3 are not firing because I am not getting a signal from the computer. The noid light works on fuel injector one and not on two and three. So this goes back to my original post "suspected something electrical."

I ran out of light and could not trouble shoot anymore last night. I am currently blaming the engine fuse block. And until I get some time in the afternoon, I will not be able to say.

So far I am learning a lot and will write a tutorial to help my fellow boater in the future.

 

[Sportster-2001-951C-Stock]

The tutorial should prove both interesting and helpful, I'm sure. Looking forward to it.

As far as the fuel line goes, sorry you got sprayed, be carful with those gasoline fumes, they'll lay in the bottom of the bilge b/c they're heavier than air.

NAPA autoparts or possibly O'Reilly's but most likely Napa can build most any fuel injection fuel line to your specs, they have the tools to crimp them properly and can install nice quick-fittings as well. I'm sure they can get your gauge connected if you take the line to them. Don't take chances trying to use hose clamps or something like that, they will leak at best and you don't need or want to deal with a bilge fire.

Carry on and good luck, LOL!

 

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Last night I got down to the boat and worked on the wiring between the Fuel Injectors and computer. I found that the wiring harness is good, the fuses are good and I have power down to each cylinder circuit.

To test the power, the DESS key must be installed. You can then take a multimeter and read the voltage on top of each fuse. There is a tiny place to stick a probe. Read both sides. You can then read power at each jack by using a fine probe into the connector. Removing the fuse drops the power down to 7.6 volts.

I then then a continuity test on circuit from the computer to the fuel injector connector. All were good. I read the resistance and that was good too (around 1 ohm).

My conclusion is the computer is bad. This really sucks. Any suggestions?

I am going to by candoo first to force the computer to override the circuit and then I will have to deal with key issues and maybe future jet skis.

 

[Sportster-2001-951C-Stock]

Injector #1 fires, #2~3 don't..... They all have both power AND ground. Yep, kinda sounds like MPEM if it fires one of them but not the other two. You've been all over the thing so I'm confident you would've found any disconnected connectors.

I would go around and reseat connectors for grins and giggles, especially anything to do with the injector driver circuit. Having a spare computer is never a bad idea, I guess. I remember well, the days when computers didn't fail. Bring back those days!

 

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I would go around and reseat connectors for grins and giggles, especially anything to do with the injector driver circuit. Having a spare computer is never a bad idea, I guess. I remember well, the days when computers didn't fail. Bring back those days!

I went over all the connectors when I first started troubleshooting this problem. The boat had been in Florida corrosive's environment. I had found corrosion on some of the connectors. I used an electronics cleaner combine with careful scraping of the connectors themselves. So I think I have all the wiring stuff managed. It's good advice

 

[pwgsx]

You need this to clean it good and use Deoxit to clean and protect the connections. http://www.ebay.com/itm/330929114989?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

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You need this to clean it good and use Deoxit to clean and protect the connections. http://www.ebay.com/itm/330929114989?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Thanks! I went ahead and bought it. I might be able to restore the connections and just plain clean my connectors.
Here is a description to the product:
http://ipatools.com/media/1-IPA_Media_Files/Sell_Sheets/008048_sellsheet_ipa_2012.pdf

Still waiting on my candoo. Hopefully wednesday I will have more news.

 

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The ongoing story of the broken boat. I had fixed some other stuff only to have the motor quit around mid-august. I have replace the fuel pump, fuel injectors (they needed it) and still NO GO!

I had bought a candoo the week before and was on limited time. I plugged candoo and I found a fault on cylinder 2/3 12 volts or short. Hmmm. It will have to wait until I get more time.

Today, I worked my way through the main fuse box that feeds power to the fuel injectors and ignition coils. I had only one cylinder firing. After much work with the multimeter I found a short on Cylinder two that was feeding into the other circuits. I removed fuse two, and the engine fired right up. Granted it's rough and it's running!

I took the boat out for a bit of a spin. It was so nice to be moving again. I was not able to pick up speed considering I was only running two out of three cylinders.

Yeah. Now I need yet an other part, the fuse box?


Any body has one for sale? 204470770 FUSE BLOCK (INC 9-15)

 

[Sportster-2001-951C-Stock]

Hurray, almost there! And Candoo came through too, have to admit I had my doubts! Is the harness pinched somewhere? Short in fuse box, I guess it's possible, wonder how???????

Now you know your ski much better!!!!!!!! (understated, LOL!)

 

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Hurray, almost there! And Candoo came through too, have to admit I had my doubts! Is the harness pinched somewhere? Short in fuse box, I guess it's possible, wonder how???????

Now you know your ski much better!!!!!!!! (understated, LOL!)

Thanks for your help and support! YEAH!

It's a short in the fuse block. The bottom most right pin on the right circle connector is 12 volts supply. With a Fuse in slot F5 I get continuity on the other pins. Remove the fuse and continuity goes away. I ran the boat with the fuses configured as shown by the picture.

 

[pwgsx]

My pins where bad on the fuse box too but the green seal around the multi-pin was torn, guess the previous owner did that. It is a PITA to replace but you should take a look to see if yours is torn or ripped. I was able to clean the pins on the fuse box and it works great now.

 

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My pins where bad on the fuse box too but the green seal around the multi-pin was torn, guess the previous owner did that. It is a PITA to replace but you should take a look to see if yours is torn or ripped. I was able to clean the pins on the fuse box and it works great now.

Thanks for your help too! I bought that pin cleaning kit and used it before checking continuity. Alas it's not that simple I am going to have to replace it. I think it's more of a pain that the previous owner ruined your green shield around the connector. That means a wiring harness! So I feel for ya, Man!

 

[pwgsx]

Yea I had to remove each pin one at a time, clean and put it into the correct hole on the new green seal. It was a good 1.5 hr job. I would never pay for a whole new wire harness.

 

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I ordered 204470770 Fuse Block from Speed Supplies. Oh well the their estimated ship date came and left. I wrote to them no response and now a pay pal dispute. Going ballistic here. I want the part and get my boat going while the water is still warm. I ordered on 10/2. Now I will have to wait it out.

I may have to order from Rivia.

 

[Sportster-2001-951C-Stock]

Thanks for your help too! I bought that pin cleaning kit and used it before checking continuity. Alas it's not that simple I am going to have to replace it. I think it's more of a pain that the previous owner ruined your green shield around the connector. That means a wiring harness! So I feel for ya, Man!

You can get the entire unpopulated connector shells, there are two OEM companies I know of, AMPhenol and Delphi Weatherpack, search on these companies if you need some parts such as crimp pins or the rubber gaskets, new connectors are available as well as any special tools for disassembly, a special pin extractor(just a few bucks) is needed for weatherpack connectors and I believe the AMPhenol connectors can be disassembled with just a small flatblade screwdriver.

I'm not sure if seadoo may have changed vendors for your skis, but my boat uses these.

 

[pwgsx]

Delphi was what I had to use for parts. Not sure on the whole assembly though.

 

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OK Here is the latest order woes. Speednet gave me a refund. I guess opening a PayPal dispute was like opening a can of Whoop-a$$. It seemed to work. I decided to support my local dealer, went in yesterday plunked my money down. They just gave me a call. Since they are no longer a SeaDoo Jet Boat dealer they can't order the part and yet they are a SeaDoo Dealer. Go figure! SeaDoo need to change that policly like yesterday and open all dealers to ordering Jet Boat parts.

I ordered my fuse block here from Riva Motor Sports. At least they are good on orders (used them once before) and I will have to wait wait wait as that's going to be 5 to 10 days shipping. Hell at the money I spent on shipping it should be at least two days!

 

[pwgsx]

You would think, I get mine from Riva and they ship it after they get it, I wish they could just order the stuff and ship directly from seadoo to us. I hate having to wait 2 weeks.

 

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Well I finally got my part. Put it into the boat and she fired right up. GREAT! Except I can't leave my cove. Duke Power has lowered the lake level to the point I got caught in the creek bed. So I came back to my dock with great shame and frustration.

So Thanks to all the people who have helped me! Only took me two months to solve this problem!

 

[Sportster-2001-951C-Stock]

Low water.... Thus your clue the ski would run perfectly. They've also been releasing water here, and there are new shallow areas since the earthquake.