Stupid P0420 cel and transmission.
Thread Starter
VIP Member
iTrader: (5)
Joined: Jul 2004
Posts: 10,118
From: Walnut, CA
Car Info: 2005 Pooparu
Originally Posted by sigma pi
you know how rich my car was running right?
i pulled my front 02 and it was white also
ping is timing
i pulled my front 02 and it was white also
ping is timing
damn eddy made me second guess myself
D Duval 059: bjaa what causes ping?
D Duval 059: lean?
Ri4: timing
RecA4: too much
D Duval 059: only timing right?
D Duval 059: trhats what i though
D Duval 059: https://www.i-club.com/forums/showthread.php?t=135871
RicA4: yeah only timing
D Duval 059: post 29
RicA4: and boost
RicA4: high boost
RcA4: either you turn down timing
: or you turn down the boost gain
RiccA4: i would find out what RPM it's pining on
: step down the boost at that rpm
RicA4: only
ecA4: like back it down 2%
RiA4: or untill the ping is gone
RicA4: ususally it's a spot on the motor where maximum load is met and the knock sensor and ECU can't react fast enough to back down timing
RiA4: because it has a 10% correction factor
RicA4: but it depends how fast the ECU reacts most of it is only running at 64MHZ or 100MHZ
RA4: super slow!
D Duval 059: bjaa what causes ping?
D Duval 059: lean?
Ri4: timing
RecA4: too much
D Duval 059: only timing right?
D Duval 059: trhats what i though
D Duval 059: https://www.i-club.com/forums/showthread.php?t=135871
RicA4: yeah only timing
D Duval 059: post 29
RicA4: and boost
RicA4: high boost
RcA4: either you turn down timing
: or you turn down the boost gain
RiccA4: i would find out what RPM it's pining on
: step down the boost at that rpm
RicA4: only
ecA4: like back it down 2%
RiA4: or untill the ping is gone
RicA4: ususally it's a spot on the motor where maximum load is met and the knock sensor and ECU can't react fast enough to back down timing
RiA4: because it has a 10% correction factor
RicA4: but it depends how fast the ECU reacts most of it is only running at 64MHZ or 100MHZ
RA4: super slow!
Thread Starter
VIP Member
iTrader: (5)
Joined: Jul 2004
Posts: 10,118
From: Walnut, CA
Car Info: 2005 Pooparu
LOL i know ping is cause by gas combusting at incorrect timing.
but i thought that there would also be other components contributing to incorrect timing.
esp when you are NOT highly modded.
but i thought that there would also be other components contributing to incorrect timing.
esp when you are NOT highly modded.
Originally Posted by kenji815
o rly.. i would of though it would get all black.. ??
i guess the heat made it white
i have no clue
icA4: 1 bar only
RicA4: WEAK!!!
RicA4: the party starts at 1.2 bar and up
D Duval 059: hahhaa
D Duval 059: i know
D Duval 059: 1.5 and its a rager
RcA4: dude go find fools with stand alones
RecA4: lets tune it
Thread Starter
VIP Member
iTrader: (5)
Joined: Jul 2004
Posts: 10,118
From: Walnut, CA
Car Info: 2005 Pooparu
Originally Posted by VIBEELEVEN
Why don't you just play it safe get it tuned, or at least a generic Ca. cobb map.
Originally Posted by kenji815
well i think i resolve the P420 cel issue so far..
hopefully with combination of running 100 octane at the track.. everything should be ok.
hopefully with combination of running 100 octane at the track.. everything should be ok.
the ecu should back timing down


