#1 [url]

Apr 3 09 3:45 PM

EXACTLY!!!! Thats my point.

You are reading it correctly and everyone else and the SM is WRONG. ( i know pertty bold of me but I also am pretty sure of myself on this)

It is a misprint that is carried over to the haynes manual as well. And with all the fancy meters people are getting with auto ranging they arte not reading thier meter right.

All the whopdala about reading below 1 ohm is sensless crap (sorry guys but on this one it is) And like I said I've been doing electroncis way to long to be wrong on this one.

The thing will not go to bellow 1 ohm while on the car. Aint no way! And even itf it did a single turn 5K pot has no senesitivity below 1 ohm, that would be nuts. that is esentialy a dead short in relationship to 5k on a single turn pot. (and this is not even a full 360 one turn pot even)

If the manual read below 1k it would be something you could set but it can not be set to below 1 ohm. I challange anyone to do it.

If you set it to below 1k things begin to be beliveable. However 2 years ago when I got ziggy#2 i did extensive work trying to get it to preform equal with Ziggy #1 on the exact same road and the exact same conditions. #2 got crapy MPG compared to #1 and I was determined to get at least the same as I had in #1 since they were identical cars. Heck if anything #1 should have gotten slightly less given ring wear with the high miles and #2 with low miles.

I checked brake drag, front drive train, air filters, spark plugs, wires, types of gas, timing, and on and on. Nothing made a diffrence. I even took the a/c belt off thinking it could be adding drag. Still no diffrence.

So I started swaping parts I couldnt check like the MAF, temp sensors, O2 and so on. Still #2 got way less MPG. I changed the TPS (marking it's placement in the swap) still no change.

Nothing made #2 get good MPG. Finaly I read all I could about the inputs to the computer. I started disconecting inputs one by one then replacing them from the computer on #1 trying to get it to match #2. Nothing worked. I did learn a whole lot about how the computer processes the info it gets and how it effects the engine's running though.

The major thing I found was that although the intputs to the computer help it fine tune the engines running it would not prevent it from running decently enough given only one failure of any one component. It also demonstrated that things like the O2 sensor are slow to react devices on the OBDI aspires. Likewise with MAF and temp.

Basicly there was not much left that could instantly effect the fuel mixture having eliminated the MAF & o2 with the slow reaction. The only thing left was the TPS! It gives an instantanious reading electricly of precisely where the throtle is and hence is the major player in determnining how much fuel is to sent to the engine based on that instantanious amount of air reaching the engine at that point in time.

So I tied to set it by the book and no luck. Just what you have run into. I tried and tried to do it by the book since both books said the same thing! Anyway I gave up doing it by the book and went with my own deduction that it was a misprint and should read 1K.

Wow did it make a diffrence!!!! fordaspire/460.gif All of the sudden the MPG jumped! I was able to dial in just what I wanted. This is the golden nut to turn to get MPG up. If you tweak with this and distributor postion just a little off what it calls for you can jumpstart the MPG without getting to predetonation or too lean of a mixture.

I was unsure of posting this at first becasue there was a chance I was running to lean and was going to pay with a burned valve so I kept quiet. But after a total of 2 years and 50,000 miles (a good part of that pulling a trailer) I can safely say the mixture was not too lean and I did not burn a valve.

If you are getting lower than 38MPG (w 5sp of course) and have done the normal remedys to no avail I would highly recomend you look to this adjustment. Some monkey may have been into your car before you trying to set it to below 1 ohm and left it as low as he could get it rather than where it should be.

I welcome comments and challanges on this topic.



Ziggy 1 --- '95 white 2dr, 5sp, a/c added, 252k, 43 top mpg (still got 'em)
No Name --- '95 teal 2 dr, 5sp, 98K, bad clutch, sold it b4 I named it
Ziggy 2 --- '95 white 2dr, 5sp, a/c 147k split rear seat, 49.3 top mpg (deceased, mortally injured in towing accident 2008)
Kermit --- '95 teal 2dr, 5sp, a/c 103k, upgraded interior package - the daily driver now
(Had 2 1988 Festivias in the '90's. Over 200k on them too)

All pulled "Trapper" the '89 kamparoo camper on the back roads I should'a been drivin' my jeep on (4x4 aspire??)