MAP sensor/TIP sensor
Joined: Feb 2004
Posts: 710
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From: United States
RE: MAP sensor/TIP sensor
Yes, the evil PCM does all those things. But it does not control the throttle. That's all I'm after here. Just say that the PCM does not control throttle. Say it!!!!!! 
It is possible to be wrong. I do it all the time. And I even admit it when I am. For instance, Hemi's do indeed have ECT.
It is possible to be wrong. I do it all the time. And I even admit it when I am. For instance, Hemi's do indeed have ECT.
Joined: Oct 2003
Posts: 448
Likes: 0
From: United States
RE: MAP sensor/TIP sensor
Ok fine it helps you control the throttle. are we happy. Yeah i know the Hemi's do i crawled all over the thing trying to figure out how the pedal was that smooth, and came away with the conclussion that they hid the cable very well, that must be it, no oil,road grime,or water to get in it. Till my dealer service rep told me the low down on it. And he told me that any mods, other than the exhaust and CAI were years away, and he is right, no one has anything worth doing out.
R.I.P. Dusty (Retired Moderator
Joined: Dec 2003
Posts: 24,471
Likes: 0
From: Alamosa, Colorado (200 yards from the Rio Grande)
RE: MAP sensor/TIP sensor
Amanda, I wanna be the "Don King" of DF....sorry, but my hair has to comply with PD regulations...[sm=smiley16.gif]
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Joined: Feb 2004
Posts: 710
Likes: 0
From: United States
RE: MAP sensor/TIP sensor
Cliff notes
MAP = reads pressurized air in the intake, after turbo, before entering cylinder
TIP = reads ambient pressure, before air enters intake
Both of these readings, along with many others, help the computer (PCM) decide how it's going to manage every single engine function (except for throttle position
). Those two sensors in particular, having to do with air pressure, are more closely related to boost control.
If you are up at 5000 ft, the PCM will realize you need more boost to compensate for the lower ambient air pressure.
As andy pointed out, the system is hideous in it's complexity.
MAP = reads pressurized air in the intake, after turbo, before entering cylinder
TIP = reads ambient pressure, before air enters intake
Both of these readings, along with many others, help the computer (PCM) decide how it's going to manage every single engine function (except for throttle position
). Those two sensors in particular, having to do with air pressure, are more closely related to boost control.If you are up at 5000 ft, the PCM will realize you need more boost to compensate for the lower ambient air pressure.
As andy pointed out, the system is hideous in it's complexity.
Thread Starter
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Professional
Joined: Dec 2003
Posts: 206
Likes: 0
From: United States
RE: MAP sensor/TIP sensor
wickedly cool education if you ask me[8D]can any of you guys and gals give me a synopsis of how the wastegate and bov work in conjunction with that information?
some performance guys say a sequential bov is better.... and yet others say to change the wastegate so i can get more boost, but if the pcm isn't programed with that/those mod/mods in mind will it truly make a signifigant difference? or will it? i bleed mopar blue [&:], but if there are aftermarket part/parts that surpass the offerings of the pvo in performance, quality, and durability i wanna know.
some performance guys say a sequential bov is better.... and yet others say to change the wastegate so i can get more boost, but if the pcm isn't programed with that/those mod/mods in mind will it truly make a signifigant difference? or will it? i bleed mopar blue [&:], but if there are aftermarket part/parts that surpass the offerings of the pvo in performance, quality, and durability i wanna know.
