Failed E Test

[Dave_The_BMXER]

Car failed my e test miserably today. Not sure why, didn't have time to get a diagnostic going to try and get one tomorrow (Sunday though so...)

Anyway I failed across the board.

My initial thoughts lead me to

HKS exhaust eliminates 1 cat
I have a c.e.l related to my exhaust
I think my 02 sensor is pooched.
:bang

Any recommendations on a reasonable place to get it looked at? I know street performance is a big fav here but are they open sunday? If not what are there hours in the week? I have one week to resolve this.

*sigh*

[MPS]

Street Performance is closed sundays
but Jim knows the trick to passing e test

[Donutz]

They are closed Sunday. You'll have to call on Monday get get an appointment. I think Jim closes around 6, but if you're lucky you can get an evening appointment during the week.

[Dave_The_BMXER]

Street Performance is closed sundays
but Jim knows the trick to passing e test

I need this.

Thanks!

[dentinger]

what were your results??

[S.F.W.]

Dave, I don't think it's the exhaust. I run the HKS, myself, and passed my etest with flying colours.

[Dave_The_BMXER]

what were your results??

HC 68 (Limit 66)
C0 .64 (Limit .37)
NO 1610 (Limit 0505)

Basically I failed all of the 40 km/h.

Going to get my code read today thanks to a helpful member.

[dentinger]

gotta be the o2 sensor, or a related problem.

one of the members had a vibrant header, and catback, (so he only had 1 cat), and he passed with flying colours.

[Dave_The_BMXER]

Codes:
P0140 - P0140 O2 circuit sensor no activity bank1 sensor2
P0038 - HO2S Heater Control Circuit High (Bank 1 Sensor 2)
PO126 - Insufficient Coolant Temperature for Stable Operation (this baffles me as I have 0 cooling issues)
P0703 - Brake pedal switch circuit malfunction (My brake lights work so this is a mystery for later...)

[Default User]

Just remember, it's only $18 to retest at the same facility you failed at.

Sounds like an O2 gone bad.
The second muffler is really a resonator (which simply tones down the sound)
the CEL is from your faulty O2 (PO140)

not sure about the other codes, but sounds like the scanner wasn't reset from the last diagnostic test. But 038 and 126 would cancel each other out

[dentinger]

if you put a new O2 sensor in, drive the car for a few days, so the computer can relearn it.

[Harbour Rat]

The P0126 (low coolant temp) could indicate the car was not properly warmed up before the test was done. The wonky readings on the O2 sensor, especially the P0038 (O2 sensor heater) could also point to this. Some shops do this to help cars fail - you know best if you trust your mechanic so make your own judgements here.

But with one converter removed it is more likely you have a bad O2 sensor or most likely you are just getting a legitimate bad reading from a good O2 sensor.

[Donutz]

As the others said, it's most likely your o2 sensor. I'm going to Jimmy tomorrow to have my secondary o2 sensor swapped out for a Denso. My current o2 pops a p013(8 or 9) every couple of weeks. If you want to risk testing with it, you can meet me tomorrow at Jimmy's and I'll give you my old one.

You can also order the Denso that I bought (from Rockauto). It was like $92 cdn shipped to my door. FYI, for some reason the price of the sensor goes up for 2006 models though.

[Dave_The_BMXER]

Jason what time are you going to Jimmy? What time is he open? I am planning on going tomorrow.

[kevcol74]

The P0126 (low coolant temp) could indicate the car was not properly warmed up before the test was done. The wonky readings on the O2 sensor, especially the P0038 (O2 sensor heater) could also point to this. Some shops do this to help cars fail - you know best if you trust your mechanic so make your own judgements here.

But with one converter removed it is more likely you have a bad O2 sensor or most likely you are just getting a legitimate bad reading from a good O2 sensor.

Code is being tripped, which means it never gets to optimal operating temp. Had nothing to do with warming it up enough before the test.
OP, are you by chance running a cooler t-stat than stock? If so, there is your problem, you won;t have heating problems per say, but your engine won't run optimal.
Make sure the O2 isn't just disconnected or has a corroded connection!

[TheMAN]

there isn't really any way to run a colder or warmer thermostat... its molded part of the water neck... hence why it's such a (ford) POS because I have seem some of them break and cause a "stuck open" symptom (as well as a P0128 code)... FWIW, the P0128 was a detection logic bug in the older ECUs, so a flash update fixed that issue

[Dave_The_BMXER]

AFIAK the T stat is stock.

My temp gauge is always dead center.

[Donutz]

Jason what time are you going to Jimmy? What time is he open? I am planning on going tomorrow.

I'll be there from about 6:30 PM until the work is done. Maybe 1.5 hrs or so. He opens around 8 or 9 AM.

[Dave_The_BMXER]

Didn't know he was open so late... I will give him a call in the morning and see when I can set something up as I already emailed my work saying I might not make it lol.

[gabbygenier]

Codes:
P0140 - P0140 O2 circuit sensor no activity bank1 sensor2
P0038 - HO2S Heater Control Circuit High (Bank 1 Sensor 2)
PO126 - Insufficient Coolant Temperature for Stable Operation (this baffles me as I have 0 cooling issues)
P0703 - Brake pedal switch circuit malfunction (My brake lights work so this is a mystery for later...)


The P0126 (low coolant temp) could indicate the car was not properly warmed up before the test was done. The wonky readings on the O2 sensor, especially the P0038 (O2 sensor heater) could also point to this. Some shops do this to help cars fail - you know best if you trust your mechanic so make your own judgements here.

But with one converter removed it is more likely you have a bad O2 sensor or most likely you are just getting a legitimate bad reading from a good O2 sensor.


there isn't really any way to run a colder or warmer thermostat... its molded part of the water neck... hence why it's such a (ford) POS because I have seem some of them break and cause a "stuck open" symptom (as well as a P0128 code)... FWIW, the P0128 was a detection logic bug in the older ECUs, so a flash update fixed that issue


i have the P0128/126 coming up all the time on my car. sometimes it will stay clear for a week and other times only a few hours, i never really understood what it was for but i think TheMan answered my Q. ill go to Elite and see what they can do about it.

ive tried to watch when it comes up and its really random, cold car, warm car, wet out, dry out. thats y it was confusing me as to what it was and i have plenty of coolant and the temp of it is always stable once the car is warm.

[Donutz]

He's not open late, but he'll stick around if you need to go in for an evening appointment. Usually it's on a case by case basis, so give him a call just to be sure he'll be there when you want to go by.

[Dave_The_BMXER]

Have not been able to get a hold of Jimmy left a message for him... going to go into work for the afternoon have one more day of legal driving left hopefully I can get it resolved before then.

Jimmy can't see me till Thurs but Hot Rodd scotts can see me tomorrow and they are near the ttc so I can still get to work.

Wooo.

[Dave_The_BMXER]

Turns out my cat was basically doing nothing, I am also getting a resonator to help backpressure/quiet things down, and the fuse for my 2nd 02 sensor was pulled for some reason (noticed this on the weekend forgot to mention).

They are also fixing my hangers as it's a little loose.

Oh and for those of you who are slammed... it's not pretty underneath lol.

[Dave_The_BMXER]

So to resolve this all:
I got a new cat
New resonator (exhaust is much quieter now but I like it)
O2 sensor rewired (when it was extended it was not soldered just twisted)

New Numbers
HC 42 (Limit 66)
C0 .06 (Limit .37)
NO 30 (Limit 0505)

No c.e.ls and my car is way more responsive at lower rpms. And my exhaust doesn't pop nearly as loud as it did before.

[cwp_sedan]

Glad you got things figured out! Those numbers are way better.

[mazdaskit]

Glad you got everything worked out now.. maybe to get your exhaust to the sound you like again maybe get a high flow cat

[Dave_The_BMXER]

It's a high flow cat I have now, what made it quieter was the resonator. I was growing a bit tired of how loud it was anyway so for now I am pleased.

[froggy]

So to resolve this all:
I got a new cat
New resonator (exhaust is much quieter now but I like it)
O2 sensor rewired (when it was extended it was not soldered just twisted)

New Numbers
HC 42 (Limit 66)
C0 .06 (Limit .37)
NO 30 (Limit 0505)

No c.e.ls and my car is way more responsive at lower rpms. And my exhaust doesn't pop nearly as loud as it did before.

so more responsive and cleaner sounds like a win win to me.

[DaveOke]

I once had a test done on my Cav and the numbers were way off (It was a Jiffy Lube). Went to the dealer and had it done again and passed with flying colours... not sure what was up with that.

Last time it came due, I changed my address to a municipality that doesn't require e-tests then renewed by sticker.