Ok guys..my car at FIRST was throwing a Too Lean (Bank 1) code and a fuel trim malfunction code. I bought an OEM primary O2 sensor and replaced it...the codes went away. About a few days later my check engine light turns on again and now it says "Catalyst Efficiency Below Threshold (Bank 1)" so far everything is leading to either my CAT..or my secondary O2 sensor right? Considering the primary O2 sensor is brand new. I checked my spark plugs today and they were greyish and had a LITTLE bit of tan, but the plugs were no where near brown, which made think I was still running lean. Now I'm getting a new code saying I'm Too Rich (Bank 1)..and the Catalyst code...??? any ideas? I still have good gas mileage so I do not think I am running rich.

I called the Tech guys at Acura..and he said even though my plugs are not brown or black that I might still be running rich..that the plugs can fool me????...Any ideas on what I can do to fix it? Or please let me know what is the most important..I want to fix part of it (the most important part) by next friday. If it is the CAT..does anyone recommend the carsound magnaflow unit? Will that most likely fix my CAT code..and does anyone recommend any certain type of O2 sensor? I would by the universal ones..but don't know if I might wire it wrong..anyone have a picture of how it looks wired..or a write up.

Sorry for the essay, but it's the only way I can let everyone know what is going on..

Thanks in advance!!


Modified by 98IntegraLSNonVtec at 11:10 PM 8/2/2006

 

Bump for any info..need to know if I am lean or rich..and what I can do to fix it..is it O2 sensors..or something else? can my CAT make me run rich? Thanks in advance!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98IntegraLSNonVtec &raquo;</TD></TR><TR><TD CLASS="quote">Ok guys..my car at FIRST was throwing a Too Lean (Bank 1) code and a fuel trim malfunction code. I bought an OEM primary O2 sensor and replaced it...the codes went away. About a few days later my check engine light turns on again and now it says "Catalyst Efficiency Below Threshold (Bank 1)" so far everything is leading to either my CAT..or my secondary O2 sensor right? </TD></TR></TABLE>

ok, you fixed the first problem. the 2nd. the converter is still covered under warranty, take it to acura and have them diagnose.

rich code....i dunno. is the car modded at all?

 

I thought it isn't covered..I called once and they said it's not...??? no the car isn't modded much..all I have is an adjustable FPR and a short ram intake...the FPR is set at 36 psi...my rear O2 sensor won't cause my car to run rich right? if that's so..might my cat be causing it? or might sea foam help me? I never sea foamed..but how important is it to change my spark plugs and oil right away..I might be able to sea foam today..and change oil and spark plugs next week!...If you can or IF you want..e-mail me at work DGastelum@firstam.com...easier for me to check.

Thanks for your info!

 

Bump for some help

 

jus give it time the bad gas milage will kick in soon. i get 30 miles in 1/4 tank without punching my car.

 

haha..yeah, but I don't want the bad gas mileage to kick in..I was getting about 60 miles to half a tank..and now I'm getting 100..but am supposebly running rich.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98IntegraLSNonVtec &raquo;</TD></TR><TR><TD CLASS="quote">haha..yeah, but I don't want the bad gas mileage to kick in..I was getting about 60 miles to half a tank..and now I'm getting 100..but am supposebly running rich.</TD></TR></TABLE>


can u explain to me in details what you did to run rich? my friend has a obd1 gsr like mine and he wants his car to run rich also, but he doesnt want to put on a test pipe.