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I have an 07 mercruiser MPI. At WOT in Neutral or in gear it will oly rev to 3700 rpms. It starts missing and backfiring. I eliminated the fuel issue as i used a secondary source. also I replaced the cap and rotor as they were corroded. Is there any common problems with the ECM?? I was also thinking it may be the TPS. I would appreciate any ideas. Thank you
Submitted: 246 days and 15 hours ago.
Category: Boat
Value: $14
Status: AWAITING CUSTOMER ACTION
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Posted by
ROCKET
246 days and 13 hours ago.
Answer
Welcome to JA
TPS is for idle mainly
you really need to plug it into a computer
but the cap and rotor was bad it could be fueling also
245 days and 14 hours ago.
Reply
Actually my mistake I was un aware that it had a rev limiter in neutral. what it is doing is it will go to full rpm for apprx 5-6 seconds and then seems to run out of fuel. It does this on the main tank or on a gerry can. new fuel filter any common probles with the filter housing or fuel pumps on these. the motor has 130 hrs on it. Thank you
Answer
nope
do not rev motor in neutral, unless you want to buy parts
well if cap rotor was corroded, better go through all the sensors and look for corrosion
Expert:
ROCKET
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Answered:
7/19/2009
Marine Mechanic
I HAVE BEEN WORKING ON BOATS OVER 25 YEARS
Posted by
ROCKET
239 days and 8 hours ago.
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