 Check Engine Light Came On Again, Code P0420 |
 May 27, 2006 - 2:00 PM
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 Enthusiast  Joined Jan 28, '05 From Redondo Beach, CA Currently Offline Reputation: 86 (100%)  |
I got a new code after i got the header on, P0420, catalyst effieciency below threshold...so either the O2 sensors are bad or not tight enough?
This post has been edited by LewFX: May 27, 2006 - 2:53 PM --------------------  |
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Jun 1, 2006 - 10:40 PM
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Enthusiast Joined Jan 28, '05 From Redondo Beach, CA Currently Offline Reputation: 86 (100%) |
diagnostic
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Jun 3, 2006 - 2:56 AM
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Enthusiast Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) |
QUOTE(LewFX @ Jun 1, 2006 - 10:40 PM) [snapback]440266[/snapback] diagnostic look in the cap of that port and you should see someting labeled OX1, OX2 and E1. hook the OX1 to the red meter lead and the E1 to the black lead and read the volt scale, then do the same with the red lead in OX2. make sure you use a computer and sensor safe meter. OX1 should read an average of .5-.45 volts, it will fluctuate up and down from .8ish to .1ish which is normal. OX2 should read fluctuations as well, but much smaller and be stable around .3 or .4 volts i beleive. im a bit fuzzy on what O2 sensors read post cat. -------------------- |
Posts in this topic
LewFX Check Engine Light Came On Again May 27, 2006 - 2:00 PM
Batman722 try reseting the ECU and seeing if it comes back a... May 27, 2006 - 11:54 PM LewFX first i tried resetting the ecu and it came back a... May 28, 2006 - 12:14 AM presure2 make sure the plug is securly connected May 29, 2006 - 6:40 AM toyotacrazy Do you have a catalytic convertor? If so its prob... May 29, 2006 - 6:53 AM
presure2 QUOTE(toyotacrazy @ May 29, 2006 - 7... May 29, 2006 - 6:55 AM LewFX still no problems with it yet, as soon as the ligh... May 29, 2006 - 12:44 PM bindertch If it does come back on you should think about mov... May 29, 2006 - 9:40 PM LewFX well today the CEL came on again, what to do now..... Jun 1, 2006 - 7:56 PM Bitter some 3rd gen eclipse folk have had luck using a sp... Jun 1, 2006 - 8:14 PM LewFX the guy who sells the header told me that it was s... Jun 1, 2006 - 9:49 PM Bitter ok, does your car have a black plastic thing near ... Jun 1, 2006 - 9:58 PM LewFX bump Jun 2, 2006 - 9:10 PM LewFX possible probs are:
1) three-way catalytic coverte... Jun 3, 2006 - 11:20 PM bindertch The problem is that the second O2 sensor is supose... Jun 5, 2006 - 6:40 PM LewFX ya i kept everything when i get it smogged. so the... Jun 5, 2006 - 8:05 PM LewFX well bought a new O2 sensor and reset the ecu, hop... Jun 5, 2006 - 10:01 PM toyotatech QUOTE(LewFX @ Jun 5, 2006 - 10:01 PM... Jun 6, 2006 - 9:03 AM bindertch QUOTE(LewFX @ Jun 6, 2006 - 1:05 AM)... Jun 6, 2006 - 2:10 PM Bitter try getting a universal cat thats meant for a larg... Jun 6, 2006 - 2:59 PM LewFX well since i know the guy who does the smog, ill t... Jun 6, 2006 - 7:59 PM LewFX well what do you know, it came on again, what a su... Jun 9, 2006 - 8:18 PM LewFX should i cut the bottom sensor and jimmy it to the... Jun 11, 2006 - 8:08 AM Bitter no, dont do that. extend the sensor and have it... Jun 11, 2006 - 6:17 PM Bitter http://www.club3g.com/forum/showthread.php?t=55284... Jun 11, 2006 - 8:08 PM LewFX ill try that. Jun 11, 2006 - 8:19 PM LewFX k bought some anti-seize, the 2 foulers, drilled i... Jun 11, 2006 - 10:01 PM LewFX okay i got the fix done today, lets hope this fixe... Jun 12, 2006 - 6:30 PM Bitter cool, keep us updated as to wether or not it works Jun 12, 2006 - 6:46 PM |
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