MAP Sensor Install
MAP Sensor Install Questions
I'm posting these questions so that others can find the answers as well, if they need to.
I put the Utec MAP Sensor in last night (yup, just like a boost gauge install).
(When you say keep the wiring short as possible), do you mean to shorten the TurboXS supplied electrical cable by cutting it and reattaching the connector?
Also what is a good target length for vacuum connections?
Facing the engine:
Installation was done on the left side, right by the oil stick:
1. I have about 4" from the sensor to the Y
2. Less than 1" that then connects to the Left side fuel rail vacuum connection
3. The original 6" hose that originally connected to that same fuel rail connection that runs from the left side of the throttle body
I'm getting readings that are about 4 or 5 numbers low. ex: Defi reads 16 boost , MAP shows 11 etc...
(at least according to my boost gauge (Defi D mechanical which tapped into the top short vacuum line on the left side of the throttle body as you look at the engine, like the MR's factory boost connection, at least the one I saw in a showroom.)
Thanks for any help
Dean
I put the Utec MAP Sensor in last night (yup, just like a boost gauge install).
(When you say keep the wiring short as possible), do you mean to shorten the TurboXS supplied electrical cable by cutting it and reattaching the connector?
Also what is a good target length for vacuum connections?
Facing the engine:
Installation was done on the left side, right by the oil stick:
1. I have about 4" from the sensor to the Y
2. Less than 1" that then connects to the Left side fuel rail vacuum connection
3. The original 6" hose that originally connected to that same fuel rail connection that runs from the left side of the throttle body
I'm getting readings that are about 4 or 5 numbers low. ex: Defi reads 16 boost , MAP shows 11 etc...
(at least according to my boost gauge (Defi D mechanical which tapped into the top short vacuum line on the left side of the throttle body as you look at the engine, like the MR's factory boost connection, at least the one I saw in a showroom.)
Thanks for any help
Dean
Last edited by nirvevo; Apr 20, 2005 at 08:58 AM. Reason: clarified subject is a question
Yeah, that thought occurred to me, so I did, but I am still trying to decipher what they are telling you to do.
I get the concept of the instructions,
1. but still working on how and where to enter the results.
2. guessing that the idea of keepng the vac and boost readings apart, as far as possible (?) is done to take in to account the entire range that the readings are likely to fall in.
3. What do I do with the Intercept Factor? I don't see a reference to it in either constraint window.
what about:
4. the install location that I chose
5. the added vacuum line lengths
6. whether cable (wire) length needs to be shortened from the TXS supplied length.(aprx 6ft?)
Any Help Always Greatly Appreciated
Dean
I get the concept of the instructions,
1. but still working on how and where to enter the results.
2. guessing that the idea of keepng the vac and boost readings apart, as far as possible (?) is done to take in to account the entire range that the readings are likely to fall in.
3. What do I do with the Intercept Factor? I don't see a reference to it in either constraint window.
what about:
4. the install location that I chose
5. the added vacuum line lengths
6. whether cable (wire) length needs to be shortened from the TXS supplied length.(aprx 6ft?)
Any Help Always Greatly Appreciated
Dean
Last edited by nirvevo; Apr 20, 2005 at 09:30 PM.
Yes, the unit came with a calibration spec card,
on the card the PSI output reads:
Cal 1 input 2233 Cal 1 output 7.18
Cal 2 input 3367 Cal 2 output 20.58
(I'm assuming that there is a decimal point on the Cal 2 output, the ink is a little smeared, but it looks like he could have been going for a decimal point there)
Unless it's a simple process on entering these numbers in the Special Constraints window, I'm still confused about how to proceed. The unit came with a DTEC instruction sheet.
The UTEC manual stills seems a little vague from my perspective.
Except for the warning in the Special Constraints section:
IMPORTANT: Use extreme caution when modifying these parameters as mistakes can result in major engine damage.
That part I'm pretty clear on
I'll give TXS a call,
Thanks
Dean :-)
on the card the PSI output reads:
Cal 1 input 2233 Cal 1 output 7.18
Cal 2 input 3367 Cal 2 output 20.58
(I'm assuming that there is a decimal point on the Cal 2 output, the ink is a little smeared, but it looks like he could have been going for a decimal point there)
Unless it's a simple process on entering these numbers in the Special Constraints window, I'm still confused about how to proceed. The unit came with a DTEC instruction sheet.
The UTEC manual stills seems a little vague from my perspective.
Except for the warning in the Special Constraints section:
IMPORTANT: Use extreme caution when modifying these parameters as mistakes can result in major engine damage.
That part I'm pretty clear on
I'll give TXS a call,
Thanks
Dean :-)
