Throttle Position Sensor Adjustment - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum
 
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post #1 of 3 (permalink) Old 05-25-2019, 08:10 PM Thread Starter
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Throttle Position Sensor Adjustment

Good evening,

So I was having a problem with my 2005 Suzuki boulevard c50 that has low idle. Took it to a shop, he said my rear cylinder isn't firing, but seems to kick on while ridding. He say it has spark, fuel, and good compression around 220 which is higher than the front cylinder which is firing. Well, he basically said he didn't have time for it so I decided to go digging. During my digging, I took off the throttle position sensor. It seemed okay, so I reinstalled it. However when I started the bike up I got a code c14. Which is a throttle position sensor. So I decided to analyze it further. The resistance at closed throttle is approximately 60 ohms, and at wide open throttle is about 200 ohms. The specs are 1400 ohms for closed throttle, and 4000 ohms for wide open. So I took the sensor off and using a screw driver I can spin the sensor to reach over 5000 ohms. So am I installing the sensor wrong, or is the sensor bad? Also, when in dealer mode I couldn't get the TPS line indicator to the middle. It was always low, unless I used the screwdriver to spin it then I could move the line to the middle or the top. However after removing the screwdriver it just goes low again because it spins to it's resting place. It's almost like I have to put it on the shaft and spin it once but I can't because of other parts in the way.

Please advise, thank you!
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post #2 of 3 (permalink) Old 05-26-2019, 05:01 AM
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Unfortunately , I don't have an answer for you . but I'm having a similar problem with my 06 m50. Good luck and I'll follow along to get any tips . BTW I've put injectors($400) tested fuel pump pressure and volume, and all the regular stuff :plugs, air filter, valve adjustment. On mine it is the front jug not firing. Yet TOTALLY fine at speed. (aside from hesitation when taking off if the idle is down) GOOD LUCK!

Joe
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post #3 of 3 (permalink) Old 05-26-2019, 11:10 AM Thread Starter
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[SIZE="a"][FONT=""][COLOR=""][SIZE=""]Yeah I've tried spark plugs. Thinking it could need a valve adjustment or it has a stuck open fuel injector but I want to fix this issue first.[/SIZE][/SIZE][/COLOR][/FONT]
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