Potentiometer mod

[matj1990]

well its got about 1/8 inch gap on to the next possible prob ?

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92 d250,5" turn out stack,smoke screw 4 turns,full power screw 3/4 turn,bhaf,boost gauge.....other stack coming soon

[matj1990]

Originally Posted by matj1990

well its got about 1/8 inch gap on to the next possible prob ?

by the way my od off switch doesnt seem to do anything my and my cruis doesnt work if that helps

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92 d250,5" turn out stack,smoke screw 4 turns,full power screw 3/4 turn,bhaf,boost gauge.....other stack coming soon

[Greenleaf]

Does your speedo work? It be all related.

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1990 D250/1992 D250 Modified by **Smokehouse Diesel** Ashland, OH

....therefore, my brothers, I want you to know that through Jesus the forgiveness of sins is proclaimed to you. Acts 13:38

[matj1990]

yea my spedo works granted it 2mph off even with stock tires

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92 d250,5" turn out stack,smoke screw 4 turns,full power screw 3/4 turn,bhaf,boost gauge.....other stack coming soon

[Greenleaf]

Well, this is about the stop where I step off the train. If I **HAD** to make another assumption, I'd say possible ECM malfunction (???) This IS your 1992 we are talking about? The crank sensor is working because the charging system functions so........

You REALLY need to speak w/Philip. Its why I hired him to be the Tech Specialist. He loves this transmission / electrical scene. It sorta turns my stomach....sorry.

My speeedo is off 6 in BOTH my trucks, so that ain't it. As long as it reads something it is working. Gotta wonder if your OD solenoid isn't getting power or seeing the ground. No cruise either so maybe power related.

Philip, you by?

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1990 D250/1992 D250 Modified by **Smokehouse Diesel** Ashland, OH

....therefore, my brothers, I want you to know that through Jesus the forgiveness of sins is proclaimed to you. Acts 13:38

[chuckect]

I have been adjusting my TPS and it seems that a tiny adjustment makes a huge difference in when it shifts into OD, but makes very little difference in voltage at idle which is about 0.8 - 0.9 VDC. So the secret seems to be "make a tiny adjustment, drive it, if you like it then leave it alone, if you don't like it then make another adjustment."

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92 RAM 250, 234.000 - rebuilt 3.54 rear-end, rebuilt auto trans. 40 HP injectors, K&N, just added a bully dog fuel pin (8/28/08)

[Greenleaf]

I moved your other question and assigned it to its own thread. Look for it under ".....Control Pin, Stuck?"



Yes. It does/will. Very sensitive. I USED to mess with it time to time. I no longer use the factory TPS but can remember the slightest turn of the adjustment bolt would net a large gain.

Another tip./ If the hole in which the head of the adjusting bolt ride in is worn out, then the adjustment will be tricky. It will be slopy to adjust and drive you batty.

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1990 D250/1992 D250 Modified by **Smokehouse Diesel** Ashland, OH

....therefore, my brothers, I want you to know that through Jesus the forgiveness of sins is proclaimed to you. Acts 13:38

[matj1990]

yea this is my 92 were talking about im the one doing the adjusting no realying messages here idk im just stumped as to whats going on looks like i might infact have to do the switch the begel has been talking about

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92 d250,5" turn out stack,smoke screw 4 turns,full power screw 3/4 turn,bhaf,boost gauge.....other stack coming soon

[Begle1]

Da switch is da best.

It goes when you want it to, it doesn't when you don't want it to; what's not to like?

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1990 D-250 Regular Cab: Full power screw; stout TC and A518 w/ manual valve body; ratchet shifter; piston LP; Ramcharger tank; manual off; computer-programmable 40 GPH water/meth fumigation; gauges

[matj1990]

Originally Posted by Begle1

Da switch is da best.

It goes when you want it to, it doesn't when you don't want it to; what's not to like?

having to hit the switch every time lol so anyway does the switch matter or just as long as it completes the ground and what wire is it that i cut ???

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92 d250,5" turn out stack,smoke screw 4 turns,full power screw 3/4 turn,bhaf,boost gauge.....other stack coming soon