Thread: EGR ALS
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Old Apr 29, 2007 | 11:26 AM
  #38  
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ian sibbert
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From: Lancaster, Lancs
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Originally Posted by DazC
Originally Posted by ian sibbert
Never used it but from people who have, the mountune one aint that good anyway....it relies on vaccum to open the valve...The focus wrc one is just a housing with two ports, spring tensioned valve and a dirty great solenoid coil controlled by a solid state relay. The relay coil is fed from the T6 and hey presto....the EGR is worked in conjunction with normal ALS stategy but with less aggression so less heat. When open the egr sounds like an air leak into the exhaust....

Tables from a T6 map for the EGR

Menu : ECU Software Setup
Group : OUTPUT FUNCTIONS ->
Group : EGR VALVE ->
Map : EGR Valve On f(RPM) (RPM)

3000

Menu : ECU Software Setup
Group : OUTPUT FUNCTIONS ->
Group : EGR VALVE ->
Map : EGR Valve Off f(RPM) (RPM)

2500

Menu : ECU Software Setup
Group : OUTPUT FUNCTIONS ->
Group : EGR VALVE ->
Map : EGR Valve On f(TPS) (ø)

20

Menu : ECU Software Setup
Group : OUTPUT FUNCTIONS ->
Group : EGR VALVE ->
Map : EGR Valve Off f(TPS) (ø)

30

Menu : ECU Software Setup
Group : OUTPUT FUNCTIONS ->
Group : EGR VALVE ->
Map : EGR Valve Frequency (Hz)

100

Menu : ECU Software Setup
Group : OUTPUT FUNCTIONS ->
Group : EGR VALVE ->
Map : EGR Valve On Duty (%)

80

Menu : ECU Software Setup
Group : OUTPUT FUNCTIONS ->
Group : EGR VALVE ->
Map : EGR Valve Maximum On Time (secs)

10
So going off that, the EGR ALS valve is just opened and closed rather than varied in position?
Daz,

Yep, sure is...

Gareth,

I have some but I aint at home, i'll post some during the week...its not complicated in the slightest.....
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