DrBabyfood
Cadet
- Joined
- Aug 19, 2016
- Messages
- 14
Fellas,
So I've got a 1998 Volvo Penta 5.7GSi out of a 1998 Chris Craft 210 Bowrider that started idling around the 1800 rpm range. Background info: the boat was a gift from my father in law and he's always taken very good care of his toys. I took the boat out with my pops and it ran perfectly. We got to one area and noticed it seemed to be running a little rich however it didn't give us any problems and ran fine the rest of the day on the water. The next day, I hooked the water up to it to flush it out and upon cranking it I noticed the idle immediately started to increase up to around 1800 rpm.
I've checked the throttle cable and the physical mechanics of the throttle body and cleaned the throttle body as well. Took it to the mechanic where they replaced the IAC sensor. They replaced the ECM and distributor but it didn't correct the issue. It seems that the timing is off which is causing [COLOR=#67B045 !important]the high[/COLOR] idle? They told me this year and model of VP engine was notorious for wiring harness problems and that they are unable to get fault [COLOR=#67B045 !important]codes[/COLOR]from the ECM because the wiring harness isn't communicating with it. The wiring harness according to VP is obsolete nowadays. I've tried searching [COLOR=#67B045 !important]online[/COLOR] to find new/used ones and have been unlucky thus far. I believe the VP [COLOR=#67B045 !important]part number[/COLOR] is 3855929. Anybody have any ideas or know anyone will to part with their wiring harness? I appreciate it!
So I've got a 1998 Volvo Penta 5.7GSi out of a 1998 Chris Craft 210 Bowrider that started idling around the 1800 rpm range. Background info: the boat was a gift from my father in law and he's always taken very good care of his toys. I took the boat out with my pops and it ran perfectly. We got to one area and noticed it seemed to be running a little rich however it didn't give us any problems and ran fine the rest of the day on the water. The next day, I hooked the water up to it to flush it out and upon cranking it I noticed the idle immediately started to increase up to around 1800 rpm.
I've checked the throttle cable and the physical mechanics of the throttle body and cleaned the throttle body as well. Took it to the mechanic where they replaced the IAC sensor. They replaced the ECM and distributor but it didn't correct the issue. It seems that the timing is off which is causing [COLOR=#67B045 !important]the high[/COLOR] idle? They told me this year and model of VP engine was notorious for wiring harness problems and that they are unable to get fault [COLOR=#67B045 !important]codes[/COLOR]from the ECM because the wiring harness isn't communicating with it. The wiring harness according to VP is obsolete nowadays. I've tried searching [COLOR=#67B045 !important]online[/COLOR] to find new/used ones and have been unlucky thus far. I believe the VP [COLOR=#67B045 !important]part number[/COLOR] is 3855929. Anybody have any ideas or know anyone will to part with their wiring harness? I appreciate it!