Check engine light came on, can't find p code

[Tommy Lee]

Hello can someone give me some direction on this? 2014 Scarab 195, supercharged 4-tec, 136 hours. Yesterday my boat suddenly cavitated at around twelve miles per hour, but only briefly. I shut off the boat, then restarted it, and it hesitated for a bit and then operated normally, but the check engine light came on. After the check engine light came on the boat operated normally like I said.

Here is my problem, How do I identify the check engine code? I think this is an 02 sensor issue because this happened about three years ago and I replaced either the pre cat or the post cat 02 sensor I can't remember which but it fixed the problem. I thought the code comes up on its own on the display but I can't remember. Is there a procedure to pull up the check engine light stored code on the display?

 

[Luc Lafreniere]

If the code is active, while the engine is running, you can find it in the settings. If it isn't active, you need software, Candoo Pro or BUDS home to access the code.

Inactive codes MAY clear on their own IF the problem is gone after a certain number of engine cycles/run time. Otherwise, you need one of those two softwares to clear it.

 

[Tommy Lee]

If the code is active, while the engine is running, you can find it in the settings. If it isn't active, you need software, Candoo Pro or BUDS home to access the code.

Inactive codes MAY clear on their own IF the problem is gone after a certain number of engine cycles/run time. Otherwise, you need one of those two softwares to clear it.

When you say "settings", how do I get to that? Thank you.

 

[Luc Lafreniere]

Using the mode and set buttons along with the adjust switch. See the attached guide.

 

[Tommy Lee]

Using the mode and set buttons along with the adjust switch. See the attached guide.

Awesome, thanks. So I can tell you that "FAULT CO" was not in the menu selection when I scrolled through the Menu on Saturday on the water w the boat running and the CEL illuminated. That means I'll need to purchase Candoo Pro or BUDS to find out why the CEL is on? Where do I interface w the laptop and the boat? I'm assuming there's an OBD2 style connector somewhere, maybe behind the seatback in front of the steering wheel?

 

[Luc Lafreniere]

You need to purchase and receive hardware before you can plug in. There's a diagnostic port right by the battery tethered to the fuse box. It has a white cap on it. The software comes with hardware that has the connector that plugs into that.

The alternative is to find a dealer or wait it out to see if it goes away.

 

[Tommy Lee]

You need to purchase and receive hardware before you can plug in. There's a diagnostic port right by the battery tethered to the fuse box. It has a white cap on it. The software comes with hardware that has the connector that plugs into that.

The alternative is to find a dealer or wait it out to see if it goes away.

Ok do you think it's ok to drive it w the CEL illuminated? There are no issues in terms of performance. Boat is driving normal. I think it kicked the problem but there's a stored code which is illuminating the CEL. Thoughts?

Btw I looked up Candoo Pro and yes I could get that for future use, but I am a little pressed since I want to go boating tmrw on a great weather day.

 

[Luc Lafreniere]

Without knowing why the check engine light is on, I can't say either way. But it definitely sounds like a simple O2 sensor or something stupid since you're not seeing any performance loss. Or a past code that isn't active anymore. Just don't go in remote areas with no way to call for help. And of course, there's always a possibility you have a major issue but we don't know it and you cause more harm. But I agree it's unlikely.

 

[Tommy Lee]

Without knowing why the check engine light is on, I can't say either way. But it definitely sounds like a simple O2 sensor or something stupid since you're not seeing any performance loss. Or a past code that isn't active anymore. Just don't go in remote areas with no way to call for help. And of course, there's always a possibility you have a major issue but we don't know it and you cause more harm. But I agree it's unlikely.

So I do see Fault Codes now in my menu as I scroll thru. I am on the lake today. They are P0300, and P0303. Researched it and it's cylinder misfire. P0303 indicates misfire on cylinder 3, I believe. Thoughts on how to proceed?

 

[Tommy Lee]

Without knowing why the check engine light is on, I can't say either way. But it definitely sounds like a simple O2 sensor or something stupid since you're not seeing any performance loss. Or a past code that isn't active anymore. Just don't go in remote areas with no way to call for help. And of course, there's always a possibility you have a major issue but we don't know it and you cause more harm. But I agree it's unlikely.

I changed the serial spark plugs a few years ago. Maybe they're so. I can't remember which NGK plugs I bought. Do you know where I can find that?

 

[Luc Lafreniere]

Change all 3 spark plugs. Inexpensive fix and those codes will automatically go away too. That's probably all it is. So what you experienced was unlikely to be cavitation. Just a loss of one plug temporarily. Common when a plug goes.

Make sure the if ignition coils are clean when you reinstall them. Torque the plugs correctly. 13 lbf.ft if you have a torque wrench. You require a spark plug socket, 5/8" and an extension.

NGK 4339 DCPR8E SeaDoo 4-Tec Spark Plug Set All 130 155 185 215 255 260 RXP RXT X GTI GTX Wake GTS GTI 3 Pack https://a.co/d/0g4QE5bA

Note the 4339 is important. They have a removable terminal which you'll need to unscrew. Look at your old ones and compare and you'll see why I mean. That's Amazon Canada.

It's recommended you use dielectric grease around the rubber boots go ensure water doesn't get into the plugs.

If you need more help, just PM me. Some are very experienced here, others are newbies. All good. Changing them is trivial and easy.

 

[Tommy Lee]

Change all 3 spark plugs. Inexpensive fix and those codes will automatically go away too. That's probably all it is. So what you experienced was unlikely to be cavitation. Just a loss of one plug temporarily. Common when a plug goes.

Make sure the if ignition coils are clean when you reinstall them. Torque the plugs correctly. 13 lbf.ft if you have a torque wrench. You require a spark plug socket, 5/8" and an extension.

NGK 4339 DCPR8E SeaDoo 4-Tec Spark Plug Set All 130 155 185 215 255 260 RXP RXT X GTI GTX Wake GTS GTI 3 Pack Amazon.ca

Note the 4339 is important. They have a removable terminal which you'll need to unscrew. Look at your old ones and compare and you'll see why I mean. That's Amazon Canada.

It's recommended you use dielectric grease around the rubber boots go ensure water doesn't get into the plugs.

If you need more help, just PM me. Some are very experienced here, others are newbies. All good. Changing them is trivial and easy.

Picked up 3 today from O'Reilly auto parts for $4.50 each let's go.

 

[Tommy Lee]

Change all 3 spark plugs. Inexpensive fix and those codes will automatically go away too. That's probably all it is. So what you experienced was unlikely to be cavitation. Just a loss of one plug temporarily. Common when a plug goes.

Make sure the if ignition coils are clean when you reinstall them. Torque the plugs correctly. 13 lbf.ft if you have a torque wrench. You require a spark plug socket, 5/8" and an extension.

NGK 4339 DCPR8E SeaDoo 4-Tec Spark Plug Set All 130 155 185 215 255 260 RXP RXT X GTI GTX Wake GTS GTI 3 Pack https://a.co/d/0g4QE5bA

Note the 4339 is important. They have a removable terminal which you'll need to unscrew. Look at your old ones and compare and you'll see why I mean. That's Amazon Canada.

It's recommended you use dielectric grease around the rubber boots go ensure water doesn't get into the plugs.

If you need more help, just PM me. Some are very experienced here, others are newbies. All good. Changing them is trivial and easy.

What ignition coil brand do you recommend or know is good for these boats?

 

[Tommy Lee]

Change all 3 spark plugs. Inexpensive fix and those codes will automatically go away too. That's probably all it is. So what you experienced was unlikely to be cavitation. Just a loss of one plug temporarily. Common when a plug goes.

Make sure the if ignition coils are clean when you reinstall them. Torque the plugs correctly. 13 lbf.ft if you have a torque wrench. You require a spark plug socket, 5/8" and an extension.

NGK 4339 DCPR8E SeaDoo 4-Tec Spark Plug Set All 130 155 185 215 255 260 RXP RXT X GTI GTX Wake GTS GTI 3 Pack https://a.co/d/0g4QE5bA

Note the 4339 is important. They have a removable terminal which you'll need to unscrew. Look at your old ones and compare and you'll see why I mean. That's Amazon Canada.

It's recommended you use dielectric grease around the rubber boots go ensure water doesn't get into the plugs.

If you need more help, just PM me. Some are very experienced here, others are newbies. All good. Changing them is trivial and easy.

I put new plugs in and code still there. Fresh gas has been put in the boat twice, so I know it's not bad gas. I'm wondering if it is the fuel injectors at this point. In this post here the dude has the same exact two codes. Thoughts?

Online source for Rotax parts?

I put the boat into the lake this spring and it's only running on two of three cylinders. The third cylinder was cutting in and out, but now is out. I did all the recommended diagnostics that I could gather from the Rotax service manual without any definitive results. The error code on the...

jetboaters.net

 

[Luc Lafreniere]

Possible. Very few items to cause/solve this. Plugs, coils, injectors, gas, human install errors. Like you said, unlikely to be gas. You are removing the terminal on the new plugs before putting them in right? Sorry, I have to ask... I've seen it all here. Do your coils look good/clean?

I did see that once where the coils were the issue. I can't comment on which ones are best sadly.