Stand alone sensor application guide (AEM, Haltech, Autronic, Accel DFI)

[turboglenn]

This thread is intended for the compilation of part numbers for sensors, ISC's and other electronics that are used in typical stand alone arrangements. Since most of the time the manufacturers don't provide info on what vehicle application their sensors came from, so they can sell them to you under their name and make more money. I hope that we can come up with a complete list of aplications to get our needed sensors from.

This morning while changing my injectors i noticed that my IAT went out on my haltech, and since i had to go through the PITA to find the right sensor without an application to look up; i figured i'd post what the application and year is for the most common IAT, CTS, MAP sensor and others used by AEM, Haltech, Autronic, ACCELL DFI (gen V and VII) and most other ECU's that utilize GM sensors

The cheapest one and most reliable type of IAT sensor was found to be OEM for a 1991 S-10 pickup with a 2.5 liter V6 in it.

I hope this helps some one get a replacement sensor without sitting in the parts store guessing at aplications and trying to match up IAT and other sensors for a half hour to 40 mites like i always end up doing..

I will continue to post the rest as i find them again(and anyone else should feel fre to add info from experience..NOT " I heard such and such sensor works " ). I have to get new ones so rarely that i always forget what application to look up myself so this will serve at least as a reminder to me

The Coolant temp sensor works from the same application, but the 3 bar MAP sensor is one I have forgotten what one it is ( i think it's the 87 or 88 turbo T/A and one certain year of the GN that came with a 3 bar map sensor, the rest ewre 2 bar)

If anyone else has number for stand alone sensors please post them up

 

[TurboTiger]

You might wanna look at the megasquirt sensor guide at Wiring and Sensors


It has more detail along with part numbers. I believe if they use a GM sensor, they'll use one of those.

 

[bling5tatus]

Well, this is good info to have.... but, we have to be mindful of the sensor's scaling. I don't think they're all created equal, so the proper way to do this.... I would think, is to take the sensor that you KNOW is good for your application, find out the scaling on it, and match that to another sensor.... otherwise we start having problems.

AEM uses a 3.5 bar sensor don't they?

 

[TurboTiger]

Almost all GM thermistors from the early 90's and earlier have the same scaling, for both coolant and IAT. in fact, the coolant and IAT are the same scaling. IAT's normally have a open element so it responds faster.

 

[turboglenn]

Almost all GM thermistors from the early 90's and earlier have the same scaling, for both coolant and IAT. in fact, the coolant and IAT are the same scaling. IAT's normally have a open element so it responds faster.

I was told this same thing by Haltech when i was doing a lot of installs of their EMS's. but that's why i started this thread, not to just tell what one's are the right thread, but to make sure they have the right scaling in the sensors listed here.

 

[turboglenn]

Here's the Ohms vs. Temperature breakdowns on the sensors used by the same ECU's listed above. The AEM can use a few different ones, but for the ECU's that don't calibrate these are the sensors and scaling associated with them (however i am unsure on the megasquirt), but it is correct for autronic, haltech, accell, FAST, and the AEM is compatible in the non p-n-p version at the least.

IAT Info: ...click and on the lower right of the pic there will be an "full size" link to view the picture to where you don't have to strain your eyes

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Coolant Temp Sensor Info (CTS)
Do the same as above to view full size

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Let me know if anyone would like me to add the 3 GM MAP sensors and their part numbers.

Also, i just ut up a chart in the tuning articles area that lists maximum IDC's from 1000 - 13,000RPM, but i think it's still waiting ot be aproved, very quicka nd usefull guide i wanted to share with everyone so they cn know their pulsewidth in ms from IDC%, or IDC% from time in ms... i will probably copy this stuff over ther once it's complete and we can edit together all teh good info

 

[4wd-Eclipse]

Let me know if anyone would like me to add the 3 GM MAP sensors and their part numbers.

That will be GREAT ... Very interesting thread ... In 2 to 3 months I'll be moving from DSMLink to AEM EMS.