500EFI alarm
07-05-2018 | 11:07 PM
#11
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
rpms when shifting into gear is ?
Rpms in N is ??
both engines doing the exact same thing here ? both showing the same rpms as well ?
Never stalls in N and you can throttle up and back down to idle rpm without it ever stalling in N using throttle only ?
stock OEM set up here ?
SCX drive or just gear lube bottles --- so something on the engine is not stock at all to warrrant an SCX drives if applicable . What the set up in detailed here.
How new is the IMCO drive bottles install ?
this happens on the water hose also ?
Stock ignition ?
whats the voltage readings when engines stalls ? and what is the voltage when you shift into gear ? what is voltage reading in N - still want to know what rpms are ?
Rpms in N is ??
both engines doing the exact same thing here ? both showing the same rpms as well ?
Never stalls in N and you can throttle up and back down to idle rpm without it ever stalling in N using throttle only ?
stock OEM set up here ?
SCX drive or just gear lube bottles --- so something on the engine is not stock at all to warrrant an SCX drives if applicable . What the set up in detailed here.
How new is the IMCO drive bottles install ?
this happens on the water hose also ?
Stock ignition ?
whats the voltage readings when engines stalls ? and what is the voltage when you shift into gear ? what is voltage reading in N - still want to know what rpms are ?
Last edited by BUP; 07-05-2018 at 11:25 PM.
07-06-2018 | 06:58 AM
#12
Thread Starter
Registered
Joined: Oct 2003
Posts: 534
Likes: 12
From: Ballston Spa, New York
rpms when shifting into gear is ?
Rpms in N is ??
both engines doing the exact same thing here ? both showing the same rpms as well ?
Never stalls in N and you can throttle up and back down to idle rpm without it ever stalling in N using throttle only ?
stock OEM set up here ?
SCX drive or just gear lube bottles --- so something on the engine is not stock at all to warrrant an SCX drives if applicable . What the set up in detailed here.
How new is the IMCO drive bottles install ?
this happens on the water hose also ?
Stock ignition ?
whats the voltage readings when engines stalls ? and what is the voltage when you shift into gear ? what is voltage reading in N - still want to know what rpms are ?
Rpms in N is ??
both engines doing the exact same thing here ? both showing the same rpms as well ?
Never stalls in N and you can throttle up and back down to idle rpm without it ever stalling in N using throttle only ?
stock OEM set up here ?
SCX drive or just gear lube bottles --- so something on the engine is not stock at all to warrrant an SCX drives if applicable . What the set up in detailed here.
How new is the IMCO drive bottles install ?
this happens on the water hose also ?
Stock ignition ?
whats the voltage readings when engines stalls ? and what is the voltage when you shift into gear ? what is voltage reading in N - still want to know what rpms are ?
07-06-2018 | 07:05 AM
#13
Thread Starter
Registered
Joined: Oct 2003
Posts: 534
Likes: 12
From: Ballston Spa, New York
rpms when shifting into gear is ?
Rpms in N is ??
both engines doing the exact same thing here ? both showing the same rpms as well ?
Never stalls in N and you can throttle up and back down to idle rpm without it ever stalling in N using throttle only ?
stock OEM set up here ?
SCX drive or just gear lube bottles --- so something on the engine is not stock at all to warrrant an SCX drives if applicable . What the set up in detailed here.
How new is the IMCO drive bottles install ?
this happens on the water hose also ?
Stock ignition ?
whats the voltage readings when engines stalls ? and what is the voltage when you shift into gear ? what is voltage reading in N - still want to know what rpms are ?
Rpms in N is ??
both engines doing the exact same thing here ? both showing the same rpms as well ?
Never stalls in N and you can throttle up and back down to idle rpm without it ever stalling in N using throttle only ?
stock OEM set up here ?
SCX drive or just gear lube bottles --- so something on the engine is not stock at all to warrrant an SCX drives if applicable . What the set up in detailed here.
How new is the IMCO drive bottles install ?
this happens on the water hose also ?
Stock ignition ?
whats the voltage readings when engines stalls ? and what is the voltage when you shift into gear ? what is voltage reading in N - still want to know what rpms are ?
Both engines show the same rpm and only having an issue with one motor.
Once I get passed the shift I have no issues throttling up or back down. Doesn't happen every time and only happens at idle.
non stock set up - 540's with Prochargers.
I've been running this motor set up with SCX drives for the past 3 seasons.
Havent run it on the hose as boats in the water.
Running MSD boxes.
Havent checked voltage yet - planning to look at it again today
07-06-2018 | 10:22 AM
#15
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
rpms are 850 in neutral and 750 in gear.
Both engines show the same rpm and only having an issue with one motor.
Once I get passed the shift I have no issues throttling up or back down. Doesn't happen every time and only happens at idle.
non stock set up - 540's with Prochargers.
I've been running this motor set up with SCX drives for the past 3 seasons.
Havent run it on the hose as boats in the water.
Running MSD boxes.
Havent checked voltage yet - planning to look at it again today
Both engines show the same rpm and only having an issue with one motor.
Once I get passed the shift I have no issues throttling up or back down. Doesn't happen every time and only happens at idle.
non stock set up - 540's with Prochargers.
I've been running this motor set up with SCX drives for the past 3 seasons.
Havent run it on the hose as boats in the water.
Running MSD boxes.
Havent checked voltage yet - planning to look at it again today
is this an CARB or EFI set up ? Alot of info needs to be known to even come close for a fix.
07-07-2018 | 11:04 AM
#18
Thread Starter
Registered
Joined: Oct 2003
Posts: 534
Likes: 12
From: Ballston Spa, New York
07-07-2018 | 12:11 PM
#19
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Joined: Nov 2004
Posts: 14,104
Likes: 3,692
From: On A Dirt Floor
I really don't know (have notg replaced a Merc 500EFI tps) but it sure as heck looks like this:ACDelco 213-894 GM Original Equipment Throttle Position Sensor
ACDelco 213-894 GM Original Equipment Throttle Position Sensor
by ACDelco
Link: http://a.co/8tjywfj
07-07-2018 | 12:12 PM
#20
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Joined: Nov 2004
Posts: 14,104
Likes: 3,692
From: On A Dirt Floor
