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Gregg
Official CCB Member
Joined: Sun Nov 07, 2010 11:08 am Posts: 1060
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TPS voltage
I've been trying to track down a lack of "pick-up", "power", "get up and go", and in my EFI set-up. We tried restabbing the distributor (yes-at the M&G) without much of a change. I cleaned the MAF sensor which DID make a difference. But I still feel like there is a delay in fast acceleration. No backfires, just the Bronco taking some time before it gets going. Therefore, I'm looking into the TPS. I've read into a couple post on CB.com but can't find exactly what I'm looking for. Some threads suggested the voltage on the "Green" wire should be between .75 and 1.00 V. However, the guy in the following video got a better acceleration response we he moved the sensor so it read 1.17 V. Long question short: Can I just swivel this sensor to an optimal response? What do you other EFI dudes have it set at? just checked mine: KOEO .71 V http://www.cleanvideosearch.com/media/a ... QXnMku7UHEBTW - Mustang/Explorer set-up. Thanks!
_________________ Definition of cool.
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Thu Nov 06, 2014 5:21 pm |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm Posts: 4074 Location: Gardnerville, NV
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Re: TPS voltage
I always read to put it as close to 1.0 without going over.
_________________ "America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe 74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges 72 U15- Explorer Sport-Candyapple Red (1 of 141)
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Thu Nov 06, 2014 6:13 pm |
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EFI Guy
VENDOR
Joined: Sun Dec 15, 2013 8:22 pm Posts: 442 Location: Arvada
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Re: TPS voltage
I set em all at .95 and call it done.
Increasing the voltage for better response is a wives tale, whoever came up with that doesn't understand how "ratch" works. In fact setting it higher could cause the opposite, You may have to open the throttle even further before WOT mode kicks in. With the TPS set higher it may take say 3.2 volts because the ratch value is higher to trigger WOT mode in the PCM rather than 3.0 volts.
What PCM code and MAF are you running?
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Thu Nov 06, 2014 6:32 pm |
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ZOSO
Moderator
Joined: Mon Nov 15, 2010 5:58 pm Posts: 3906 Location: Henderson, Co
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Re: TPS voltage
What Garry said. I've always done 0.96v on all tps sensor's.
_________________ Rob
74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories.
04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine
New project: 77 Bronco Ranger, body work and more body work.
Very little left of a 72 durango tan explorer sport
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Thu Nov 06, 2014 6:57 pm |
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Gregg
Official CCB Member
Joined: Sun Nov 07, 2010 11:08 am Posts: 1060
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Re: TPS voltage
_________________ Definition of cool.
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Thu Nov 06, 2014 9:43 pm |
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Gregg
Official CCB Member
Joined: Sun Nov 07, 2010 11:08 am Posts: 1060
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Re: TPS voltage
Update: I moved TPS volts up to .95 and it was idling fine but accelerating from a stop was rougher. I moved it down to .83 and it seems pretty good. Overall, it has been an improvement. I ran codes just because and I will cross reference them later. KOEO: 81, 82, 85, 84 KOER :94, 44, 33
I'll take a look at the cylinder balance test tomorrow.
_________________ Definition of cool.
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Sun Nov 09, 2014 8:54 pm |
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Viperwolf1
Official CCB Member
Joined: Tue May 07, 2013 10:37 pm Posts: 1485
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Re: TPS voltage
Try androgel.
First thing I would look at is to see if the throttle is opening all the way. Maybe your purse is stuck under the pedal.
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Mon Nov 10, 2014 5:47 pm |
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Moab Mike
Official CCB Member
Joined: Mon Jan 03, 2011 2:59 pm Posts: 1940 Location: Witness Protection Program
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Re: TPS voltage
Now that's funny!
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Mon Nov 10, 2014 7:59 pm |
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EFI Guy
VENDOR
Joined: Sun Dec 15, 2013 8:22 pm Posts: 442 Location: Arvada
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Re: TPS voltage
If you're going to be at the breakfast...Clean the greasy stuff out of your J3 port, I wanna stick something in it.
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Mon Nov 10, 2014 9:57 pm |
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Justin
Official CCB Member
Joined: Sun Oct 10, 2010 12:04 am Posts: 6198 Images: 0 Location: Lakewood
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Re: TPS voltage
Will you be requesting his TPS report?
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Mon Nov 10, 2014 10:50 pm |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm Posts: 4074 Location: Gardnerville, NV
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Re: TPS voltage
_________________ "America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe 74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges 72 U15- Explorer Sport-Candyapple Red (1 of 141)
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Tue Nov 11, 2014 8:13 am |
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Gregg
Official CCB Member
Joined: Sun Nov 07, 2010 11:08 am Posts: 1060
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Re: TPS voltage
_________________ Definition of cool.
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Tue Nov 11, 2014 9:37 am |
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Booger
Official CCB Member
Joined: Thu Dec 23, 2010 6:55 pm Posts: 809 Location: Broomfield
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Re: TPS voltage
Stupid question but does the distributor have mechanical advance or is it all ECM controlled.
_________________ Bob - Turning hydrocarbons into noise since 1970
Spiritual owner of the now Zoso mobile (1974 Bronco Ranger - EFI 351W-4R70W-ARB front and rear-STC softtop- High Country hood-3 1/2" WH lift- Cross inboard rear shock mnt- Duffs bumpers- Warn 8274- 33's- Cheby disc conversion)
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Sun Nov 16, 2014 9:28 am |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm Posts: 4074 Location: Gardnerville, NV
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Re: TPS voltage
_________________ "America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe 74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges 72 U15- Explorer Sport-Candyapple Red (1 of 141)
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Sun Nov 16, 2014 9:40 am |
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Booger
Official CCB Member
Joined: Thu Dec 23, 2010 6:55 pm Posts: 809 Location: Broomfield
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Re: TPS voltage
Here at altitude you can use a bit more advance. I think I used to use a couple more in all my old dizzy vehicles. Added a couple more degrees on my Harley as well. Might be too much a lower elevations but riding/driving up here it works.
_________________ Bob - Turning hydrocarbons into noise since 1970
Spiritual owner of the now Zoso mobile (1974 Bronco Ranger - EFI 351W-4R70W-ARB front and rear-STC softtop- High Country hood-3 1/2" WH lift- Cross inboard rear shock mnt- Duffs bumpers- Warn 8274- 33's- Cheby disc conversion)
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Sun Nov 16, 2014 9:59 am |
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Gregg
Official CCB Member
Joined: Sun Nov 07, 2010 11:08 am Posts: 1060
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Re: TPS voltage
There's a guy on this thread that advances and retards his distrutor for the summer and winter seasons. I know it doesn't help his elk hunting.
_________________ Definition of cool.
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Sun Nov 16, 2014 10:40 am |
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Viperwolf1
Official CCB Member
Joined: Tue May 07, 2013 10:37 pm Posts: 1485
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Re: TPS voltage
You can run a few more degrees advance during cold temperatures generally. Just bump it up a few and if it doesn't ping you're good. What is your timing set at now?
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Sun Nov 16, 2014 1:40 pm |
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