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07-21-2021, 12:19 AM #1
2015 Moomba mondo surf edition \4238 engine fault code question
Each time we go out and fill the ballast up and begin to surf the check engine light goes on. Per a thread I read on here I replaced both O2 sensors. I am now trying to burn through the remaining gas in the tank running laps around our lake, just in case it is a gas issue. No check engine light when I am running 30 mph to burn gas. I am now going to fill the tank with 91 non-ethanol gas. Again, the orange check engine only comes on when the motor is under high stress, surfing for example. Any other thoughts on what it could be? I do not have the correct tools or knowledge to check the fuel line pressure.
2015 Moomba Mondo Surf Edition 6.2 L raptor with upgraded ballast (910s in back and 500 in front)
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07-21-2021, 08:43 AM #2
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07-21-2021, 09:25 AM #3
[QUOTE=Holdmybeer;371452]Go around and check all exhaust connections. If you changed the O2 sensor and still getting the code, you have a leak allowing fresh air in. Tighten all the V-band clamps.[/QUOTE
I hate to ask the obvious, but can you specifically point out to me what clamps...as I look at the engine there seem to be a lot! Sorry. My engine experience is limited!2015 Moomba Mondo Surf Edition 6.2 L raptor with upgraded ballast (910s in back and 500 in front)
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07-21-2021, 10:22 AM #4
Is it possible it’s a collapsed CAT matrix? If I remember there were issues with Indmar CATs during those years in which the matrix would collapse giving O2 sensor faults and a number of other misc codes.
If you can visualize the honeycomb, see if it’s intact.
Currently boatless2020 SA 450 Wife calls it White Cloud. Said it makes her feel "Classy"
2017 Sanger V215sx. We call it Viagra because it's the little blue pill that gets everyone up (Sold)
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07-21-2021, 01:18 PM #5
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07-21-2021, 01:19 PM #6
I hate to ask the obvious, but can you specifically point out to me what clamps...as I look at the engine there seem to be a lot! Sorry. My engine experience is limited!
2015 Moomba Mondo Surf Edition 6.2 L raptor with upgraded ballast (910s in back and 500 in front)
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07-21-2021, 08:44 PM #7
Check these connections.
Back of the engine can access through rear lockers/v-drive doghouse. CATS are the canisters on the exhaust.
raptor-400-full-engine.jpg2015 Moomba Mojo Surf Edition
4,000lbs
Manual Flow
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07-22-2021, 01:18 PM #8
Awesome! Thank you.
2015 Moomba Mondo Surf Edition 6.2 L raptor with upgraded ballast (910s in back and 500 in front)
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07-22-2021, 01:35 PM #9Senior Member
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Last edited by parrothd; 07-22-2021 at 01:40 PM.
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2002 Moomba Mobius LSV - Sold
2006 Moomba Mobius LSV - Sold
2017 Moomba Craz - Enzos, Lead
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07-22-2021, 01:38 PM #10Senior Member
- Join Date
- Aug 2011
- Posts
- 2,522
http://www.instgram.com/jlyons30
2002 Moomba Mobius LSV - Sold
2006 Moomba Mobius LSV - Sold
2017 Moomba Craz - Enzos, Lead