Ohm value needed

[XS4U7566]

Does anyone know what the ohm reading should be for the air temp sensor on a 2.5 i have a 93 260 with a 11350 a49 box on it if that info is needed thanks greg.

[MTCM]

Resistance varies with air temp. Air temp goes up, sensor resistance goes down. Air temp go down, sensor resistance goes up. There is probably a nominal resistance value for a given temperature, but I do not know what it is. You can check that sensor with a DDT to be sure if it is functioning properly.

Two things for sure: It should not read short (zero ohms) or open (infinity).

Did you ever receive my e-mail concerning the Merc Cleaver?

[captcarb]

At 70 to 80 degrees the resistance should be around 7000 to 8000 ohms. At lower temps the value goes significantly higher and produces a richer mixture.

Jim

[MTCM]

You da man............

[captcarb]

One of the Merc manuals (not the 260/245 manual) has the values for that sensor. It might be the promax manual. I think Tony Brucato has the info.

We posted at the same time.

Jim

[Brendan Power]

68 degrees 10.25k ohms:D

[MTCM]

We have done this before on the "post at the same time" (LOL)......................I had that value written down somewhere, but could not find it. Thanks for the reminder. Take care.

[MTCM]

and ye shall receive.................thanks Brendan

[us1]

Is that an outboard you have mounted on the back of your truck?:D I like that.

[XS4U7566]

I will have to go check my sensor and i will post what it reads later today have to go to bed just got home from work Wayne i did not get your e mail about the prop i just bought one but thanks anyhow sorry about the confusion Greg

[XS4U7566]

I would say the air temp in my garage is around 45 or so and my ohm reading is 18.69 k ohms is my sensor ok or is it junk thanks for the help Greg.

[captcarb]

That is about what I get at those temps. I would check it at a warmer temp also to be sure.

Jim

[XS4U7566]

Thanks for the response, i turned my torpedo on heater and the ohms starting going down so i would say this part is ok thanks greg.