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How to: TPS adjustment (dealer mode) for Dummies

102K views 42 replies 27 participants last post by  DrtyHarry  
#1 · (Edited)
Tools you'll need:

T25 tamper-proof torx bit.

Here is a few pictures of what one looks like.

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Steps:

1. You'll need to prop your tank and locate the dealer terminal. It will be a white terminal with a white cap that has 5 black rubber circles on top.

Here is a pic of what it looks like. NOTE THAT YOU WANT TO PUT THE PAPERCLIP IN THE TWO HOLES ON THE END WITH THE COLORS I HAVE SHOWING IN THE PICTURE. The red/white & black/white


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Here is what the cap looks like.

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2. Bridge the gap with a paperclip. My picture shows how I did it.

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3. Once this is done, look at your gauge cluster (turn bike to on, but do not start it). My cluster was reading how the picture is below. You want the dash on the left to be in the middle, NOT the top or bottom. Some people like to get the TPS to where the dash bounces back and forth between the top and middle, that's your call. I have mine right in the middle.

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4. Locate your TPS. It will be on the right side of the bike, back behind some wiring. I had to move a cluster of cables out of the way to see mine. I remove my right side fairing as it gives you a view into where the TPS is located.

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#2 ·
5. Loosen the screw. DO NOT DO NOT DO NOT remove the screw. I have never done so, but I can't imagine it's fun. And probably a pain in the ass if you drop it down in the bike. It only needs to be slightly loosened.

6. In the next picture, you can see the TPS (the black piece behind the screw. You can see the gold ring on it in the picture). Movie this piece up or down will move the dash on your gauge cluster. Up moves the dash up, down moves the dash down. Again I make it to where my dash is in the middle. It doesn't take much to move it, just push it with your fingers.

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7. Tighten the screw back up. Your done.
TAKE NOTE:

Please note that in order to check codes if you are getting an FI light, you bridge the connection with the paperclip and instead of seeing -C00, you will see the code. Below is a list of the codes pulled right from the manual.

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#6 ·
haha! Yeah... been doing a few mods to the bike. My spiegler lines will be in this coming week so I'll have that how to up this week/weekend.

And one day, ONE DAY, I'm going to install that god damn full yosh r55 and pcv + autotune sitting in my garage!

To be honest, it started out snapping the pics and doing the writeups just for myself, so I can have an easy lookback when I do them again... then it was suggested to post em up, so here they are.

BTW I didn't even know you were on GDC... I'm a junkie myself... assfaultjunkies, with Brandon.

Nice seeing you on other forums haha!
 
#9 ·
Good info indeed but have a question,
yesterday morning a few friends and I went riding, a few miles into the trip the little red light came on and flashed between F1 and the temperture. Pulled over shut it off got out the book, found nothing started it up and no light no flashing F1??? WTF!!
It was damp and cool when it came on. we finshed the ride after 230 miles nothing.
What could it have been. Didnt see F1 code in the previous posts or the book.
Thanks.
 
#12 ·
Will do ;)

My spielger brake lines should be in this week... excited to get those bad boys on... should be a fun write-up as well.

Then my full yosh r-55 + pcv + autotune.

After that I'm not sure if I have anything left, maybe I'll just do smaller things like tire changes, oil changes, etc. as I do them... lots of oil changes up on the boards though.

Brake pads, rotors, guess I got those as well.... <sighs>.... this shit is an endless money pit!

Thank god I love riding.
 
#14 ·
Well none of it is really a "mod".

The TPS adjusts your "throttle position sensor"... to dumb it down, if your feeling jerks as you ease off and ease on the throttle, it's probably time to adjust it.... having the left dash in the middle of the C00 like "-C00" is per specs.

The paperclip trip is to save you like $90 to have suzuki read a code off your bike if you are throwing any errors.

It short circuits the wires and puts you in "dealer mode" which will allow you to read any codes if you are showing an FI light.... or it will allow you to see the setting of your TPS.

Without the FI light on (if you are code free) you will see -C00 if your tps is normal, or the dash will be at the bottom or the top if your tps is off.

I hope that makes sense haha... tried to keep it very simple.

Anyways, it's more of "maintenance" than it is a mod.
 
#15 ·
The only part I'm not getting is the dash part where you said,
"You want the dash on the left to be in the middle, NOT the top or bottom. Some people like to get the TPS to where the dash bounces back and forth between the top and middle..."
 
#16 ·
Okay...

You want the screen to read:

-C00

That is per the manual.

Some people like the dash to be at the top of the "C". But to make sure it's not to far up, they get it to where the dash kind of "bounces" between the middle and the top on your gauge cluster.

Then they tap the tps adjuster a tad to where it' just stays at the top, but this assure them it's not adjusted to far.... then they tighten the screw back down.

Make sense?

I mean the adjuster that you are moving, that black thing behind the screw, moves a lot. Lets say it was knotched out from 0-33

0-11 = dash on bottom
12-22 = dash in middle
23-33 = dash on top.

Say factory setting is 18... the dash would fall in the middle. Some people want it at the top, so they want it at 23.... but if they just crank the tps adjuster all the way, it'd be at 33, but still in the top... so to assure it's more at 23... they allow the dash to bounce between middle and top.

I dunno... easiest way I can think to explain it.

Some folks feel that with the dash "JUST" to the top mark.... it gives them more responsiveness. I've tried both, don't notice a difference, so I keep it in the middle.
 
#21 ·
Can anyone tell me what effect a PCV (+autotune) will have on the TPS reading and the need to do this maintenance.

What i'm wondering is:
If I calibrate my TPS via the PCV software, do I still need to do this mod?
If I put my bike in dealer mode to check the TPS position, does the PCV effect the position displayed on my bike's gauge (ie: if my bike reads _C00, will re-calibrating my TPS via the PCV software help bring it up to -C00) ?

Since I'm getting the herky/jerky with a PCV+autotune, I'm wondering what to start fiddling with.

thx in advance
 
#22 ·
I have a K8 600 and I have a C40. Not a good sign. Since it means the $782 sensor is throwing a code. I have noticed my "-" is at the top. I think if I adjust it to the middle it might fix my ISC Valve Code. I am hoping so..
 
#24 · (Edited)
I just adjusted my TPS today, because the dash was at the bottom, although my bike was not doing herky jerky. So, I didn't really noticed much of a difference, if any, after the adjustment. Perhaps because my throttle was smooth to begin with.

Thanks! Almost, pretty good write up. However, there's a couple of corrections.
1. The tank does not need to be proped up to locate the coupler. Only need to remove the seat.
2. Per Suzuki Service Manual, warm up the engine and keep it idling (pg. 1C-4). Then, using a mode select switch (or solid copper wire about 22? gage or home made switch), bridge the two terminals you mentioned.

Hope this helps.
 
#30 ·
my bike is displaying a code rather than C00, I am not concerned about the code it's throwing bc I know what it is so I am not worried about that...my question is; how can I skip past that code and display the C00 like it should read so I can adjust my TPS?

HELP PLEASE!
 
#31 ·
you can adjust your tps even if a code ais flashing the tps is the little - on the left of the c if the dash is on the bottom like _ or on top then you need to adjust it to the middle.

the FI codes that come on need to be checked out. what codes are you receiving.