Car overboosting?

Audakas

Registered User
Joined
Mar 16, 2011
Messages
98
Reaction score
2
Points
18
Location
London Wembley
Hello, does map sensor controls we bost? if its over boosting anything ocntrols the boost in engine like dosent let to much boost get in to intake manifold? or anything
 
Last edited:
no. the MAP sensor only take reading.

the N75 valve controls the boost levels via the wastegate
 
MAP sensors tells the ECU how most boost there is in the charge system... the ECU then uses the N75 to control the boost based on what the maps says it wants and the MAP sensor is seeing...

I have tried to interpret what you have posted to the best of my ability... If the MAP sensor shows a boost deviation above the requested boost in the MAP then the ECU will use the throttle body and N249/DV to cut boost pressure...

Over boost is subjective based on the info you have given... over boost can be caused by a number of things... If this is the problem you are getting then post some more specific info please, makes it easier to diagnose... as does making your posts readable :)

<tuffty/>
 
MAP sensors tells the ECU how most boost there is in the charge system... the ECU then uses the N75 to control the boost based on what the maps says it wants and the MAP sensor is seeing...

I have tried to interpret what you have posted to the best of my ability... If the MAP sensor shows a boost deviation above the requested boost in the MAP then the ECU will use the throttle body and N249/DV to cut boost pressure...

Over boost is subjective based on the info you have given... over boost can be caused by a number of things... If this is the problem you are getting then post some more specific info please, makes it easier to diagnose... as does making your posts readable :)

<tuffty/>

When i bouth the car it had manual boost controler, and n75 pas pluged off the TIP but still on connection to ECU, and i think its over boosting no boost gauge instaled yet, dont wanna damage the engine.
 

Similar threads

Replies
21
Views
2K
Replies
24
Views
6K
Replies
2
Views
803
Replies
4
Views
1K
Replies
5
Views
3K