What the HE double hockey sticks? You have codes and thought that had nothing to do with your issue(s), good Greif
What low voltage codes?
If the 5V reference supply is low it may just be one of the sensors is drawing to much current. This issue happens often and can be found, but your...
Techmate shows no codes
Unplug things and it runs better, but there are still no codes
IAC is working backwards and there are still no codes
No matter what is done like unplugging things which should throw codes do not
I have nothing, hope someone can help
I understand what your saying, but this should NOT happen. Its all the way open it should read 100
Did you get the wrong IAC or is there a wiring issue?
As first mentioned, the IAC should never read zero
I don't know what you have but if throttle plate is closed and if IAC was closed the motor should die
Most likely a vacuum leak
There is no re-learning
Remove throttle cables and place TB fully closed. Adjust cable so that cables just slide back on. Remove once again and turn barrel nut one more turn out so there is a slight pressure holding the Throttle plates closed
Never that bad. Need to pull the motor anyway to fix, but might be the coupler was not installed correctly. Either that or it sat a very long time not running and it was out of alignment then and coupler created a set
The plus side of a B2 is less corrosion and prop seal leak chances. The B3 having stainless props can cause more corrosion for a boat left in the water and the Mercathode needs to be working correctly
The chances of leaking prop shaft seals is greater with B3 due design, but its just the chance of
All Bravo's use the same upper housings so long as they are not the older ones. You can change your B2 to a B3 and will like docking even more. With counter rotating props there is next to no side tracking when going in reverse.
I use a B3 on my 10K cruiser
Sort of, but its not working together, its sensors which tells the ECM what is happening. The TPS should be about 0.6V at idle and goes to about 4.5V at WOT. The IAC should be close to 40 counts (about 40%) at idle and go to zero when RPMs are above 1500
Removing the throttle cable from the TB is done to make sure the cable is to make sure the TB is full closed. When motor starts put s little pressure to hold it closed to see if that makes a difference
Correct Techmate and turn key ON, don't start motor. Go to TPS position screen and should...
Having to open the throttle some to start and then running that high you might have a TB or intake leak. The IAC is closing off trying to slow the idle down but its unable to
I don't understand the IAC at 0 and be full open
The IAC goes from 0 closed to 100 full open
Seeing 0 has me thinking its either a vacuum leak or TPS issue maybe
What does the Techmate show for TPS?
Have you tried disconnecting the throttle cable from the TB?
There are several 4.3's with all kinds of ignition systems, what is your serial number?
Is this a new to you boat?
What happened before it won't start?
What have you done to check for spark?
Don't know where you can just look up the trailer and find axle part number.
Get the dimensions and find one that way
https://www.championtrailers.com/blog/measuring-trailer-axles-the-easiest-way-to-measure-your-trailer-axle/
