EVO 8 inconsistent boost drop
#1
Newbie
Thread Starter
EVO 8 inconsistent boost drop
Hello All,
My 03 EVO has recently been doing something really strange. I daily drive the car, most of the time it boosts perfectly, however other times it suddenly drops boost. Sometimes I do two back to back pulls when on one pull it boosts properly and the next pull it drops.
The boost peaks at 1.6 bar as I floor it for 1-2 seconds and then suddenly drops at around 0.9 - 1 bar for the rest of the pull.
Could a boost leak cause such a problem or could it be an electrical problem as its inconsistent?
The car has the following mods:
HKS exhaust system and downpipe
HKS suction and induction
Turbo Smart Dual Port BOV
Turbo Smart EBOOST controller
Evo 9 turbo
Walbro fuel pump
Custom Reflash
bigger intercooler and ralliart piping
My 03 EVO has recently been doing something really strange. I daily drive the car, most of the time it boosts perfectly, however other times it suddenly drops boost. Sometimes I do two back to back pulls when on one pull it boosts properly and the next pull it drops.
The boost peaks at 1.6 bar as I floor it for 1-2 seconds and then suddenly drops at around 0.9 - 1 bar for the rest of the pull.
Could a boost leak cause such a problem or could it be an electrical problem as its inconsistent?
The car has the following mods:
HKS exhaust system and downpipe
HKS suction and induction
Turbo Smart Dual Port BOV
Turbo Smart EBOOST controller
Evo 9 turbo
Walbro fuel pump
Custom Reflash
bigger intercooler and ralliart piping
The following users liked this post:
ZZEVO (Jun 7, 2018)
#3
EvoM Guru
iTrader: (1)
Do a boost leak test, and thoroughly inspect the BOV and boost reference line that goes to the BOV.
The following users liked this post:
ZZEVO (Jun 7, 2018)
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eb66
Evo Engine / Turbo / Drivetrain
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Jan 23, 2010 12:00 PM