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1999 Lexus RX 300 Check Engine Light

Tiny
DARKIRI
  • MEMBER
  • 1999 LEXUS RX 300
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 84,000 MILES
My car was sluggish, hesitating and backfiring. I went to Autozone prior to dropping off the car. The computer codes pulled were P0125, P1135, P1150 and P1155. What steps would your guys do to service the car?

Also, is an engine code P1185 a valid code for a Lexus?
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Thursday, October 15th, 2009 AT 5:05 AM

5 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Checking fuses would be my 1st step.
Is the engine warming up to operating temp nice and quick
check thermostat and its operation
O2 sensor most likely at fault if all checking out OK
I am not sure of o1185 I will try and research it and let you know if I come up with any
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Thursday, October 15th, 2009 AT 6:23 AM
Tiny
DARKIRI
  • MEMBER
  • 3 POSTS
Were you able to locate code P1185 for a Lexus.

Thanks for help.
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Friday, October 23rd, 2009 AT 4:18 AM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Sorry I didn't see your replay earlier
P1185 is not a valid code and I dont have any thing on it are you sure you have this code?
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Saturday, October 24th, 2009 AT 1:54 PM
Tiny
DARKIRI
  • MEMBER
  • 3 POSTS
Yep was code a disreputable service station said was the reason he replaced a fuel pump. Wish I'd checked here first before going but sometimes in an emergency you do things out of order
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Tuesday, October 27th, 2009 AT 7:58 AM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Unfortunately sometimes we get the answers a bit to late
just remember we here in the future and willing to help
thank you
good luck
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Tuesday, October 27th, 2009 AT 8:16 PM

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