Optimax 2002 200HP DFI

[GoodLivin]

I am getting a Smartcraft Alarm INJECTOR FAULT.<br /><br />Engine normally revs flat out at 5400 rpm, now only get 4800 rpm.<br /><br />Have disconnected injectors one at a time and find that number 6 does not have any effect when disconnected, all others cause engine to run rougher.<br /><br />I have checked the coils of the fuel injectors and direct injectors and these are OK. I have checked wires from direct injetors and fuel injectors to ECM and all show continuity.<br /><br />Grateful for any advice anyone can give.

 

[rabidfish]

Re: Optimax 2002 200HP DFI

There should be a fault buffer that gives you info on what the engine was doing at the time of the fault. It may only be happening at certain times, or conditions. <br />See your dealer, the problem may be covered under warranty. I think for 2002 the injector drivers were in the ECM555.<br />There have been some direct injector failures. your dealer can help identify those that need replaced.<br /><br />Just a note. If the #6 direct injector has failed. it may show up as fuel in the "air" side.

 

[GoodLivin]

Re: Optimax 2002 200HP DFI

Thanks for your help. You are right, the drivers are in the ECM. My problem is that I am on a little Caribbean Island without a dealer which is making life difficult. Can you suggest any further tests I might make to ascertain what is happening.

 

[rabidfish]

Re: Optimax 2002 200HP DFI

what's your serial number, I may be able to help from here.

 

[GoodLivin]

Re: Optimax 2002 200HP DFI

OT513568<br /><br />Thanks for your help

 

[rabidfish]

Re: Optimax 2002 200HP DFI

Mercury is not going to help you on this one.<br />Do you have a Mercury DDT? If not, they are available... check e-bay... look also for a OTC 4000 "enhanced" they are basically the same tool.<br /><br />You'll need a cartridge. I have stuff going to Anguilla from time to time. You'll have to send me an email. You also need a fuel pressure gauge.

 

[hondon]

Re: Optimax 2002 200HP DFI

Why do'nt we just swap an injector from one cylinder to an other and see if the problem follows the injector?

 

[rabidfish]

Re: Optimax 2002 200HP DFI

What you suggest would be a good test if we were looking for a mechanical problem with the injector.<br /><br />The injector coil tests OK. We are trying to determine the cause of the injector misfiring.

 

[GoodLivin]

Re: Optimax 2002 200HP DFI

I am watching ebay for a ddt. I think it will be worthwhile to purchase one if I can get it for a reasonable price, then if you are willing you could talk me through the testing phase on the phone.

 

[rabidfish]

Re: Optimax 2002 200HP DFI

I'll help any way I can... Mail me a plane ticket, It's freezing up here!