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GS300 changed spark plugs to TM plugs & now code P0154, vsc, vsc off light, abs light

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Old 05-26-10, 05:51 PM
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1GStoEnvy
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Default GS300 changed spark plugs to TM plugs & now code P0154, vsc, vsc off light, abs light

ok, so last weekend i changed out my spark plugs to the torquemaster plugs. after i put everything back together i get a cel code of P0154 and ABS, VSC, VSC off light came on so i thought maybe my bank 2 sensor 1 o2 was bad. i bought a new one for bank 2 sensor 1 & bank 1 sensor 1 i replaced them both and the code still comes back on along with my ABS, VSC, VSC off light. has anyone had this happen to them...? if so what did you do to fix this problem.
thanks in advance

- john
Old 05-26-10, 08:06 PM
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Red Bully
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i dont know why it would turn off you abs and vsc if it was an emmisions issue (plugs)
Old 05-26-10, 08:17 PM
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lexus ASM
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You left something unplugged or you pinched the harness, just retrace your steps, also check the grounds.
Old 05-27-10, 08:15 AM
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Squirrl
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u may need a (TPS) sensor! i had the same problem with those VSC lights changed the sensor car runs perfect! $100 dollar part.
Old 05-28-10, 12:06 AM
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^What codes were you throwing? If you are referring to your issues with rough idle in the thread you started, I'm not sure if the OP is having the same problem. Maybe he can elaborate.

OP, I don't know what the issue is, but did she throw any other codes? Usually P0430 or maybe P0153? Maybe its the cat?
Old 05-28-10, 02:03 AM
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1GStoEnvy
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Originally Posted by lexus ASM
You left something unplugged or you pinched the harness, just retrace your steps, also check the grounds.
i've retrace my steps a few times already and can't seem to find anything wrong. the ground is good as well.

Originally Posted by Squirrl
u may need a (TPS) sensor! i had the same problem with those VSC lights changed the sensor car runs perfect! $100 dollar part.
i've tested the TPS and i'm getting voltage, so it's good there.

Originally Posted by o6spdracer
^What codes were you throwing? If you are referring to your issues with rough idle in the thread you started, I'm not sure if the OP is having the same problem. Maybe he can elaborate.

OP, I don't know what the issue is, but did she throw any other codes? Usually P0430 or maybe P0153? Maybe its the cat?
no, it didn't throw any other codes. just the P0154...




thanks for all your time and input guys

- john
Old 05-28-10, 12:27 PM
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o6spdracer
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Please keep us posted! I was looking into this a little more and maybe its the PCV?
Old 05-28-10, 01:04 PM
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Why do I always see posts with TM plugs installed with problems I wonder why....
Old 05-28-10, 02:14 PM
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Debonair
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P0154 Possible causes:

Defective O2 Sensor
Heater relay or Circuit (O2 heater not interior )
Air Induction System
Fuel Pressure Problem
Old 06-01-10, 01:05 PM
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Did you clean the terminals before reconnecting? I was reading that excess dirt might cause a poor connection.
Old 06-01-10, 06:03 PM
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timber1426
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yall are thinking way to deep into this. Stick with what your code is bank 2 sensor1. Im hoping you when with parts from lexus. Pm me is you can't figure it out. I will look at the EWD tomorrow if you need me too. Lexus's are too easy to work on to be thinking about random stuff to replace. Let me know man.
Old 06-01-10, 07:42 PM
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duby1
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this happen to me like 4 times. Does your brake light work?
Old 06-01-10, 08:04 PM
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PHML
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stick with OEM Denso Iridium Long Life plugs....great price at Sewell.
Old 06-01-10, 10:04 PM
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Mike813
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try this, its not the same code but i did notice when i was replacing my spark plugs as well the connector for the o2 sensor near the firewall the wires were brittle and cracked. you can try a voltage test on the 4 wires to see if thats your problem. I had to rewire/solder a new connection and all was well after.
Old 12-16-13, 06:50 AM
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GregCon
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I'm having the exact same issue....did anyone ever post a resolution? It seems this thread just died off...!


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