Are my cats bad or is this problem way worse than I think?
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Are my cats bad or is this problem way worse than I think?
I have 14 codes that came up at o o o O Rieleyyyy and I’m wondering what I’ll need to fix this. Another weird think it comes up as a 2004 when it’s a 2005 on the registration and the motor is a de and not an hr when I have a stick shift. Could these codes be an actual problem with my car computer or is it true that I really have 14 codes. The car runs 100% good I feel nothing wrong with it it’s great. https://imgur.com/gallery/dgjNM
if your too lazy to see the pics here it is in text
Closed loop bank 1 and 2
Catalyst system efficiency below threshold bank 1 and 2
Closed loop bank 1 and 2 ( came up twice for some reason )
Air fuel sensor 1 heater bank 1 and 2
Closed loop bank 1 and 2 (also came up twice tf?)
Catalyst system efficiency below threshold bank 1 and two (...)
Air fuel sensor 1 heater bank 1 and 2 (kms)
if your too lazy to see the pics here it is in text
Closed loop bank 1 and 2
Catalyst system efficiency below threshold bank 1 and 2
Closed loop bank 1 and 2 ( came up twice for some reason )
Air fuel sensor 1 heater bank 1 and 2
Closed loop bank 1 and 2 (also came up twice tf?)
Catalyst system efficiency below threshold bank 1 and two (...)
Air fuel sensor 1 heater bank 1 and 2 (kms)
Last edited by Roy760; Mar 25, 2018 at 05:06 PM.
BANNED!!!
Joined: May 2017
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From: Washington State
Coupe 6MT Premium RAS
P1148/P1168, system cannot enter closed loop. Check the harness of the AF sensors for damage, possible the AF sensors (or the heaters) are damaged.
P0420/P0430 Catalyst efficiency meaning the ratio between the AF and O2 sensors won't get within spec (probably related to P1148/P1168)
P1031/P1051 AF sensor heater failure high amperage (probably the root cause of EVERY DTC)
The AF sensor heaters are a known point of failure and a semi-common wear item. Chances are the heaters failed on both banks and therefor the system cannot enter closed loop which is causing every one of the codes for all components downstream of it's programming. I suggest thoroughly INSPECTING the area for any melted/pinched wires but since the machine is operating properly in open loop function that's probably not the issue and you likely just need to replace the AF sensors. If you can hear any exhaust leaks then repair those first because they can cause the same DTC's to pop up.
It wouldn't hurt to pull off the cats for a visual inspection but they're probably fine, I would simply because it's FREE and you should inspect them anyways given all the AF related errors you currently have.
The HR motor wasn't used until 2007 on AT equipped G's but you should figure out WHICH DE motor you have, 2005-2007 6MT had a slightly different VQ35DE which is easily identifiable (google pictures of a rev-up timing chain cover and you'll see what I mean).
P0420/P0430 Catalyst efficiency meaning the ratio between the AF and O2 sensors won't get within spec (probably related to P1148/P1168)
P1031/P1051 AF sensor heater failure high amperage (probably the root cause of EVERY DTC)
The AF sensor heaters are a known point of failure and a semi-common wear item. Chances are the heaters failed on both banks and therefor the system cannot enter closed loop which is causing every one of the codes for all components downstream of it's programming. I suggest thoroughly INSPECTING the area for any melted/pinched wires but since the machine is operating properly in open loop function that's probably not the issue and you likely just need to replace the AF sensors. If you can hear any exhaust leaks then repair those first because they can cause the same DTC's to pop up.
It wouldn't hurt to pull off the cats for a visual inspection but they're probably fine, I would simply because it's FREE and you should inspect them anyways given all the AF related errors you currently have.
The HR motor wasn't used until 2007 on AT equipped G's but you should figure out WHICH DE motor you have, 2005-2007 6MT had a slightly different VQ35DE which is easily identifiable (google pictures of a rev-up timing chain cover and you'll see what I mean).
Joined: Mar 2009
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From: By the sea, Tx
G35 sedan w/ too much money in mods
When my cats are bad I just put them outside and make them work for their food.......
That might be one of your issues but I don't think it's the only one.
That might be one of your issues but I don't think it's the only one.
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Jun 1, 2004 03:56 PM