IDLE SURGE FIXED!!!
05-09-2008, 08:46 PM
#1
1st Gear Member
Thread Starter
Join Date: Apr 2006
Location: Ohio
Posts: 127
IDLE SURGE FIXED!!!
man im so happy, i was at a friends and we just redid the lower intake gasket on his 5.0 and we mixed a couple of the vacuums and was messin around with them to fix it, and he remembered having a vacuum going to his BAP sensor. without the vacuum his car would surge just like mine was doing so i went and checked on mine and sure enough it was missing the same vacuum, plugged it in BAM!!! SURGE GONE!!!! 
I've tried so many different things to get rid of the surge and none have worked, i dont think the vacuum was ever hooked up to the BAP in the first place so i had no clue it even needed one.
Just wanted everyone to know that if your idle is surging/stalling at startup make sure you have a vacuum going to your BAP sensor
I've tried so many different things to get rid of the surge and none have worked, i dont think the vacuum was ever hooked up to the BAP in the first place so i had no clue it even needed one.
Just wanted everyone to know that if your idle is surging/stalling at startup make sure you have a vacuum going to your BAP sensor
05-09-2008, 08:51 PM
#3
1st Gear Member
Thread Starter
Join Date: Apr 2006
Location: Ohio
Posts: 127
RE: IDLE SURGE FIXED!!!
Yea me2, another dragon slayed!
But on a side note is this really considered a vacuum leak?I mean you would never find anything leaking out of it, just that nothing is hooked up to it? I've searched tons of forums for answers and find all the common things but have never heard of this, just seems like something that should be more commonly thought about i guess?
But on a side note is this really considered a vacuum leak?I mean you would never find anything leaking out of it, just that nothing is hooked up to it? I've searched tons of forums for answers and find all the common things but have never heard of this, just seems like something that should be more commonly thought about i guess?
05-09-2008, 09:26 PM
#4
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: IDLE SURGE FIXED!!!
ORIGINAL: Jon82387
man im so happy, i was at a friends and we just redid the lower intake gasket on his 5.0 and we mixed a couple of the vacuums and was messin around with them to fix it, and he remembered having a vacuum going to his BAP sensor. without the vacuum his car would surge just like mine was doing so i went and checked on mine and sure enough it was missing the same vacuum, plugged it in BAM!!! SURGE GONE!!!!
I've tried so many different things to get rid of the surge and none have worked, i dont think the vacuum was ever hooked up to the BAP in the first place so i had no clue it even needed one.
Just wanted everyone to know that if your idle is surging/stalling at startup make sure you have a vacuum going to your BAP sensor
man im so happy, i was at a friends and we just redid the lower intake gasket on his 5.0 and we mixed a couple of the vacuums and was messin around with them to fix it, and he remembered having a vacuum going to his BAP sensor. without the vacuum his car would surge just like mine was doing so i went and checked on mine and sure enough it was missing the same vacuum, plugged it in BAM!!! SURGE GONE!!!!
I've tried so many different things to get rid of the surge and none have worked, i dont think the vacuum was ever hooked up to the BAP in the first place so i had no clue it even needed one.
Just wanted everyone to know that if your idle is surging/stalling at startup make sure you have a vacuum going to your BAP sensor
05-10-2008, 05:39 PM
#8
3rd Gear Member
Join Date: Dec 2006
Location: South Texas
Posts: 665
RE: IDLE SURGE FIXED!!!
Barometric (BAP) Sensor
See Figure 18
Fig. 18: Barometric and manifold pressure sensor look similar
The barometric pressure sensor is used to compensate for altitude variations. From this signal, the ECA modifies the air/fuel ratio, spark timing, idle speed and EGR flow. The barometric sensor is a design that produces a frequency based on atmospheric pressure (altitude). The sensor is mounted on the right fender apron.
Its a vent - not a vacuum hook up.
See Figure 18
Fig. 18: Barometric and manifold pressure sensor look similar
The barometric pressure sensor is used to compensate for altitude variations. From this signal, the ECA modifies the air/fuel ratio, spark timing, idle speed and EGR flow. The barometric sensor is a design that produces a frequency based on atmospheric pressure (altitude). The sensor is mounted on the right fender apron.
Its a vent - not a vacuum hook up.
05-10-2008, 05:48 PM
#9
I ♥ Acer
Join Date: May 2008
Location:
Posts: 144
RE: IDLE SURGE FIXED!!!
ok now im having same problem after installing a composite powerbox intake, and i was wrong my BAP sensor has NO vac line on it,
car surges up to 4k then dies, now i also removed and blocked off the EGR valve wile installing this intake, but i dont think that should have a effect on it since it has not been plugged in for a LONG time... any thoughts?
car surges up to 4k then dies, now i also removed and blocked off the EGR valve wile installing this intake, but i dont think that should have a effect on it since it has not been plugged in for a LONG time... any thoughts?
05-10-2008, 06:13 PM
#10
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
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