HOW TO: Mod Caliber 3bar sensor (P/N 5149056AA) - Dodge SRT Forum
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post #1 of 159 (permalink) Old 01-20-2010, 03:37 PM Thread Starter
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HOW TO: Mod Caliber 3bar sensor (P/N 5149056AA)

Here are the drawings showing you how to modify the Caliber 3bar MAP sensor 5149056AA to fit the NSRT-4 intake and to replace the TIP sensor.
For the slow kids, YOU NEED TO BUY TWO SENSORS FROM YOUR DEALER!!! ONE FOR THE MAP AND ONE FOR THE TIP





More details will follow but these will get most guys started

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Last edited by duster360; 09-16-2010 at 11:12 AM.
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post #2 of 159 (permalink) Old 01-20-2010, 03:37 PM Thread Starter
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I got the modified MAP/TIP sensor put in tonight. It wasn't so bad.

MAP

First off you have to get the F'en thing to bolt down. PTP and Bid D are correct that a little extra whittling is needed to get the MAP to sit flat on the manifold.


Here's the culprit. There's a little flash on the intake and its hitting the MAP sensor slightly:


You can shave a bit off the sensor as suggested but I believe that modifing the manifold there's less risk of damaging the sensor. Your choice



If you decide NOT to buy or fab a sensor adaptor, you'll see that the new MAP is facing the wrong way and that makes the wiring almost too short. The tension on the wiring is unacceptably tight. DO NOT LEAVE THE WIRING SO TIGHT or eventually the MAP sensor connector will fail.


You can extend the wiring a couple inches but I saw that the MAP wiring on the harness was actually long enough but had some excess wrap up in the injector harness. So I slit the harness to free the excess MAP wiring and BINGO!! The harness reached the new MAP with no issues! The bare wiring shown is the extra length that was gained. The Zip tie is used as a strain relief.


Here's the finished product. All wrapped up like stock, BE SURE THE WIRING IS LOOSE and has a good 1" movement. Also the original screws will be too long. You need to find a shorter screw or do like I did. Since it was a Sunday afternoon and I was lazy, so I just used a little 1/4" spacer I had laying around :


TIP was much less involved. All I did was remove the TIP sensor bracket and drilled a hole for a sheet metal screw and wa'la. As long as the TIP is securely fastened in place it really doesn't matter if its actually bolted down:


Once evething is bolted/plugged in,,,Load your rescaled tune and CHECK IT OUT by looking at the BARO/TIP and the MAP with the KEY ON and the ENGINE OFF. If the 3bar sensors are used on a stock scale here whta you'll see:


If the scale is correct your MAP/TIP/BARO will match. The kPa will be between 95 to 101 depending on where you live.

Note: my BARO/TIP and MAP are off by about .6kPa--NOT a BIG deal. This is well within tolerance. 0.6kPa is only .09psi

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Last edited by duster360; 08-14-2015 at 09:04 AM.
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post #3 of 159 (permalink) Old 01-20-2010, 04:08 PM
 
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Holy huge images. Thanks Duster.
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post #4 of 159 (permalink) Old 01-20-2010, 09:47 PM
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post #5 of 159 (permalink) Old 01-20-2010, 10:04 PM
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Looks good

AGP S256


UNTUNED
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post #6 of 159 (permalink) Old 01-21-2010, 08:18 PM
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Outstanding!! Thanks for taking the time to make this.
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post #7 of 159 (permalink) Old 01-22-2010, 09:41 AM
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Looks good, only thing I would change about the map sensor you need to take the front edge off because it hits the intake manifold and doesn't let the sensor sit flat. If you use the MPX adapter block this won't matter.
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post #8 of 159 (permalink) Old 01-23-2010, 08:59 PM
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Quote:
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Been waiting on this one to upgrade. Annoyance = Awesome R&D.
Just like the R&D that we did so we could sell these to you guys.

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Originally Posted by Big D's Blue 04 View Post
Looks good, only thing I would change about the map sensor you need to take the front edge off because it hits the intake manifold and doesn't let the sensor sit flat. If you use the MPX adapter block this won't matter.
Ding, this is a must when you install these on your stock manifold. You need to remove .050 to .080 off the sensor top, but don't take to much or you will run into the sensor electronics and ruin the sensor.
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post #9 of 159 (permalink) Old 02-25-2010, 05:43 PM
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post #10 of 159 (permalink) Old 02-26-2010, 12:39 AM
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You need to remove material off the sensor part itself. So the top of the "box" need to have .050 to .080 removed from it. This way it will clear the ridge on the intake manifold.
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post #11 of 159 (permalink) Old 03-10-2010, 10:20 PM
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Bump. Looking for a little more info on this. Anybody tried it? And on the tip sensor you have to cut it down to a half inch.. then shave it down so the diameter equals 5/16's or what?

And i think i can help with the pamn/pand dilemma..
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post #12 of 159 (permalink) Old 03-12-2010, 07:52 PM Thread Starter
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Originally Posted by radicalmark29 View Post
Bump. Looking for a little more info on this. Anybody tried it? And on the tip sensor you have to cut it down to a half inch.. then shave it down so the diameter equals 5/16's or what?
I had our machine shop mod the TIP today, and since the weather is a little nicer, i'll be putting these in this weekend. I'll add pretty pictures for everyone.

You don't have to shorten the TIP at all, just reduce its diameter to 5/16" and leave a little flange for a hose.

WWW.NEEDLESSTORQUE.COM
1025ccInj+ E85/GAS Base tunes =$385

E85+Gas Base tune Combo $150!!
Please EMAIL!!! dave at needlesstorque.com
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post #13 of 159 (permalink) Old 03-12-2010, 08:37 PM
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Very nice!

(JPG )
2003 SXT
2005 SRT-4
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post #14 of 159 (permalink) Old 03-14-2010, 11:47 AM
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Question

Quote:
Originally Posted by duster360 View Post
I had our machine shop mod the TIP today, and since the weather is a little nicer, i'll be putting these in this weekend. I'll add pretty pictures for everyone.

You don't have to shorten the TIP at all, just reduce its diameter to 5/16" and leave a little flange for a hose.
P/N for the TIP?
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post #15 of 159 (permalink) Old 03-14-2010, 12:55 PM
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P/N for the TIP?
Same as the MAP.
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