The good thing about having twins when diagnosing an issue is that you can swap parts from one engine to the other and see if the fault follows the part. As long as you change only one part at a time and test before swapping the next part, you may find what's causing the issue.
Check the IAC muffler. It might be clogged or they've been known to move and cause problems. It's a small cylindrical sponge in the throttle body.
Idle air control and tps sensors
-
Viper
- CYO Supporter
- Posts: 6266
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 475 times
- Been thanked: 1791 times
-
bud37
- Admiral
- Posts: 5182
- Joined: April 23rd, 2015, 10:22 pm
- Has thanked: 604 times
- Been thanked: 1312 times
Re: Idle air control and tps sensors
Well a little update.....back from the warm, sunny south to 5' of snow 
got one of each for each engine, so that is 2x iac and 2x tps for a total of 195.00 for all........so now I have some spares. On another note . I never received a reply from Rinda on any of my questions so did not order the code reader....we will see as the winter goes on......well thats it , happy shovelling...... 
got one of each for each engine, so that is 2x iac and 2x tps for a total of 195.00 for all........so now I have some spares. On another note . I never received a reply from Rinda on any of my questions so did not order the code reader....we will see as the winter goes on......well thats it , happy shovelling...... FWIW.....The above is just my opinion.
Sponsors