rich air/fuel readings. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

tru180sx · 10-10-2008, 11:38 PM

my ka-t just recently started shooting me rich air fuel ratios during cruising on the high way and when i take off from a stop sign. my afr usually are 13.x on cruising.but know 9.x shows up on my guage. when i slam the gas the afr are ok...sounds confusing but idk how to explain it better...
late

neilsan · 10-10-2008, 11:59 PM

is your gauge running off of a wideband o2 sensor

tru180sx · 10-11-2008, 07:15 AM

yes wide band. a ngk nfx wide band meter to be exact......
sometimes my ka runs good and sometimes shitty!!!!
using a afc neo to tune. but never did this till recently!

HS13KLS · 10-11-2008, 08:35 AM

Quote:

Originally Posted by tru180sx

yes wide band. a ngk nfx wide band meter to be exact......
sometimes my ka runs good and sometimes shitty!!!!
using a afc neo to tune. but never did this till recently!

wow i just made a thread about this last night

its been happening to me
let me know if you figure it out before me
i have a safc2.
hmm

*1QUICK4* · 10-11-2008, 10:57 AM

Quote:

Originally Posted by tru180sx

yes wide band. a ngk nfx wide band meter to be exact......
sometimes my ka runs good and sometimes shitty!!!!
using a afc neo to tune. but never did this till recently!

There's your problem

HS13KLS · 10-11-2008, 10:02 PM

your car sounds just like mine. i was checking my maf and everything. but i just found out my problem, check your distributor. the rotor of mine was ruined so it made my car run really rich. but that was my problem, hope that works

tru180sx · 10-12-2008, 06:48 AM

could be a spark problem, havent checked it out yet...works been kicking my ass! ill get on it and let u guys know! late

HS13KLS · 10-12-2008, 08:22 AM

well i wouldnt have ever guessed but i checked under my distributor cap and my rotor was shot. and my friend told me that it would cause my car to run super rich. and it wouldnt idle well..but its runs fine

tru180sx · 10-18-2008, 07:45 AM

i figured out the problem......i was low on coolant!!!!

10-10-2008, 11:38 PM	#1
tru180sx Leaky Injector Join Date: Mar 2008 Location: guam usa Age: 33 Posts: 70 Trader Rating: (0) Feedback Score: 0 reviews	rich air/fuel readings. my ka-t just recently started shooting me rich air fuel ratios during cruising on the high way and when i take off from a stop sign. my afr usually are 13.x on cruising.but know 9.x shows up on my guage. when i slam the gas the afr are ok...sounds confusing but idk how to explain it better... late __________________ tru sport

10-11-2008, 07:15 AM	#3
tru180sx Leaky Injector Join Date: Mar 2008 Location: guam usa Age: 33 Posts: 70 Trader Rating: (0) Feedback Score: 0 reviews	yes wide band. a ngk nfx wide band meter to be exact...... sometimes my ka runs good and sometimes shitty!!!! using a afc neo to tune. but never did this till recently! __________________ tru sport

10-12-2008, 06:48 AM	#7
tru180sx Leaky Injector Join Date: Mar 2008 Location: guam usa Age: 33 Posts: 70 Trader Rating: (0) Feedback Score: 0 reviews	could be a spark problem, havent checked it out yet...works been kicking my ass! ill get on it and let u guys know! late __________________ tru sport

10-18-2008, 07:45 AM	#9
tru180sx Leaky Injector Join Date: Mar 2008 Location: guam usa Age: 33 Posts: 70 Trader Rating: (0) Feedback Score: 0 reviews	i figured out the problem......i was low on coolant!!!! __________________ tru sport

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10-10-2008, 11:59 PM	#2
neilsan Zilvia Junkie Join Date: Sep 2004 Location: east coast Age: 40 Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	is your gauge running off of a wideband o2 sensor

10-11-2008, 10:02 PM	#6
HS13KLS Zilvia FREAK! Join Date: Aug 2006 Location: Illinois/California Age: 32 Posts: 1,114 Trader Rating: (13) Feedback Score: 13 reviews	your car sounds just like mine. i was checking my maf and everything. but i just found out my problem, check your distributor. the rotor of mine was ruined so it made my car run really rich. but that was my problem, hope that works

10-12-2008, 08:22 AM	#8
HS13KLS Zilvia FREAK! Join Date: Aug 2006 Location: Illinois/California Age: 32 Posts: 1,114 Trader Rating: (13) Feedback Score: 13 reviews	well i wouldnt have ever guessed but i checked under my distributor cap and my rotor was shot. and my friend told me that it would cause my car to run super rich. and it wouldnt idle well..but its runs fine