P0125 p1135 p1155 p0171 p1130 p1150
03-27-15, 05:31 PM
#1
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P0125 p1135 p1155 p0171 p1130 p1150
My mother in law owns a 2000 ES300 automatic. She has the following codes P0125 P1135 P1155 P0171 P1130 P1150 P1135 P1155. (P1135 and P1155 are listed twice on the scanner)
What is the issue for all of these codes to appear? Is there a how to on how to fix the issue?
What is the issue for all of these codes to appear? Is there a how to on how to fix the issue?
03-28-15, 01:17 AM
#4
Doubt it is VVTi because you do not have VVTi specific p134X or 135X codes. The main codes indicate you have two bad A/F sensors. Unlikely that both failed at the same time. Do you know how long the CE light has been on? Maybe one A/F sensor failed some time ago and now the other one has failed. I would guess a dirty MAF sensor. It is also possible you have a bad vac leak, maybe someone forgot to reconnect a line. P0125 is a companion code, P0171 is a lean condition.
Has anyone worked on the car recently?
PS. You post your question Fri night and then bump it 1 1/2 hours later. People will be more inclined to help if you expend a little effort and search this forum (the RX300 subforum is also an excellent resource) instead of demanding an immediate answer.
Has anyone worked on the car recently?
PS. You post your question Fri night and then bump it 1 1/2 hours later. People will be more inclined to help if you expend a little effort and search this forum (the RX300 subforum is also an excellent resource) instead of demanding an immediate answer.
Last edited by artbuc; 03-28-15 at 03:35 AM.
03-28-15, 04:26 AM
#5
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I'm trying do get this resolved quickly for them. A couple months ago the car was out of whack and one of the vvt sensors was replaced and it helped but now this has happened. I find it weird that both a/f sensors would go bad at the same time and cause so many codes
03-28-15, 05:19 AM
#6
Who did the work? How did they know it was a bad VVTi sensor? Did the CE light ever go out after the VVTi work?
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03-28-15, 05:39 AM
#8
Assuming this is a new problem, which I doubt, I would clear the codes and then see which codes reappear first. This could be something very difficult to pinpoint like a bad ECU or poor ground but I would clean the MAF sensor first.
How many miles on this car? When was TB last changed?
How many miles on this car? When was TB last changed?
Last edited by artbuc; 03-28-15 at 05:55 AM.
03-28-15, 06:15 AM
#9
I don't think this is related to the vvti. Looks to me like both your front O2 sensors failed or you have some circuit failure that affects both sensors. Lacking further information I'd bet on the sensors. How many miles on your car? Have you ever replaced them before? It is common for these sensors to fail after 130,000 miles. If you have never replaced them it wouldn't hurt because they are going to fail soon anyway.
It wouldn't hurt to clean the MAF. That is easy to do.
The bank 2 sensor 1 is usually very easy to replace. You could just replace that one and see if it clears the bank 2 codes.
I don't think it is weird or unusual for them to fail in close proximity to each other. They are basically the same part so you would expect them to fail at roughly the same time. Stuff happens. I had both my OCVs (VVTI sensors) fail within days of each other and the insulation on my bank 1 sensor 1 O2 sensor wiring somehow got stripped causing it to short out. The simplest solution is usually the correct solution. I had three different problems going on at the same time while I thought there was only one problem.
It wouldn't hurt to clean the MAF. That is easy to do.
The bank 2 sensor 1 is usually very easy to replace. You could just replace that one and see if it clears the bank 2 codes.
I don't think it is weird or unusual for them to fail in close proximity to each other. They are basically the same part so you would expect them to fail at roughly the same time. Stuff happens. I had both my OCVs (VVTI sensors) fail within days of each other and the insulation on my bank 1 sensor 1 O2 sensor wiring somehow got stripped causing it to short out. The simplest solution is usually the correct solution. I had three different problems going on at the same time while I thought there was only one problem.
03-28-15, 07:28 AM
#13
If you want to be sure. here's the diagnositic procedure for a 97 es. Probably similar to your 2000.
INSPECTION PROCEDURE
1 Check voltage between terminals HTR, HTS, HTL of ECM connectors and body
ground.
PREPARATION:
(a) Remove the glove compartment .
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminals HTR, HTS, HTL of ECM
connectors and body ground.
HINT:
Connect terminal HTR to bank 1 sensor 1.
Connect terminal HTS to bank 1 sensor 2.
Connect terminal HTL to bank 2 sensor 1.
OK:
Voltage: 9 ~ 14 V
OK Check and replace ECM .
NG
2 Check resistance of heated oxygen sensor heater . 11 – 16 ohms at 20°C (68°F)
NG Replace heated oxygen sensor.
OK
Check and repair harness or connector between EFI main relay (Marking: EFI), heated oxygen
sensor and ECM .
INSPECTION PROCEDURE
1 Check voltage between terminals HTR, HTS, HTL of ECM connectors and body
ground.
PREPARATION:
(a) Remove the glove compartment .
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminals HTR, HTS, HTL of ECM
connectors and body ground.
HINT:
Connect terminal HTR to bank 1 sensor 1.
Connect terminal HTS to bank 1 sensor 2.
Connect terminal HTL to bank 2 sensor 1.
OK:
Voltage: 9 ~ 14 V
OK Check and replace ECM .
NG
2 Check resistance of heated oxygen sensor heater . 11 – 16 ohms at 20°C (68°F)
NG Replace heated oxygen sensor.
OK
Check and repair harness or connector between EFI main relay (Marking: EFI), heated oxygen
sensor and ECM .
03-28-15, 07:36 AM
#14
