How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Jason Your Own Question
Jason, Marine Mechanic
Category: Marine Electronics
Satisfied Customers: 500
Experience:  Degree in Marine Technology, Also Certified with Mercury Marine, MCM, MIE, VP, Yamaha, Honda, Suzuki
Type Your Marine Electronics Question Here...
Jason is online now
A new question is answered every 9 seconds

I have a 2000 MerCruiser 350 mag MPI can't get over 2800

Customer Question

I have a 2000 MerCruiser 350 mag MPI can't get over 2800 rpm's spitting in sputtering out of throttlebody I put my scanner on there and have a code telltale low oil pressure 1. Oil pressure on gauges 40 psi at idle outdrive lube bottles full just installed engine and outdrive did not hook up alarm system
Submitted: 2 months ago.
Category: Marine Electronics
Expert:  Wayne replied 2 months ago.

Hi I'm Wayne

I will try to help you

if your boat is out of the water

take oil sample from lower unit

Customer: replied 2 months ago.
Boats in the water now Outdrive was resealed
Customer: replied 2 months ago.
This is an engine issue
Expert:  Wayne replied 2 months ago.


Yes I know a engine issue,

but that code is either engine or do to lower unit

bearing going bad , I am just trying to help you

you may need to do a engine oi sample

boat codes are very sensitive

Customer: replied 2 months ago.
All oil is fine up to level and new drain court out of the engine oil perfect ,yesterday put mechanical oil pressure gauge on engine 40 to 60 pounds this problem seems to be in the Guardian mode
Customer: replied 2 months ago.
I will get a mechanic

Related Marine Electronics Questions