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Donna McCracken
Donna McCracken Posted on Oct 12, 2012
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Check engine light code p1150

Just had Rear Main SEal replaced at about $1000. Within two days check engine light came on. Have new exhaust noise since rear main seal repair but took back and theychecked exhaust system and reset code. Say nothing is wrong with exhaust system. Now Code P1150 is back on again one day after resetting. What is going on?

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Stephen

Stephen

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  • Lexus Master 21,873 Answers
  • Posted on Oct 12, 2012
Stephen
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Code 1150 for a Lexus means the O2 sensor for bank two sensor one is not working. It could be a problem with the sensor or the wiring harness. Bank two is on the side of the engine with cylinder two, and sensor one is in front of the catalytic converter.

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Scorpedo

Jamie Heppner

  • 111 Answers
  • Posted on Dec 12, 2008

SOURCE: 2000 Lexus RX300 6cyl 3L VVT-i "Engine Codes"!

The first and last code are your start and stop so you can ignore them the P1130 and P1150 are your two front oxygen sensors( pre cats ) bank one and two. Depending on your millage it sounds like it is time for a little maintence. Normally they should be changed at or around 60,000 kms

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Anonymous

  • 1 Answer
  • Posted on Nov 26, 2008

SOURCE: Rear Main Seal Leak

To replace the seal, the mechanic will have to either lift the engine or lower the transmission. You will get much better pricing going to a transmission shop (e.g. AAMCO) and getting a quote from them to replace the seal.

Anonymous

  • 234 Answers
  • Posted on Apr 15, 2009

SOURCE: rear main seal leaks..does this affect transmission??

A leaking rear main seal will not cause your transmission to leak.

The transmission has its own seal and should not leak because of the engine rear main seal.

Due to the labor involved in replacing the rear main seal on the engine, it is best if you replace the front transmission seal at the same time if possible.

Installation varies on different vehicles but the principles are the same.

Anonymous

  • 5158 Answers
  • Posted on Apr 16, 2009

SOURCE: Check engine light is on

no such thing as a catalytic computer... there is a catalytic converter ... part of the exhaust system so they may now be "guessing" that it's an O2 sensor. take the car to autozone... they will scan the codes for free.... post the codes here tho the lads and lasses there are pretty clever and will probably tell you what the codes mean.

Anonymous

  • 78 Answers
  • Posted on May 17, 2009

SOURCE: How hard is it to replace the rear main seal in a '87 Samurai?

Is it a 4x4 if it is you would have to seperate the tranny from transfer case and drive shaft tp change out seal.If not just drop the drive shaft and replace seal.We are talking about the rear seal at the end of the tranny.

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Mine is a 2001 Sienna LE. I got the P0420 code and the dealer want to replace an engine control computer for $1600. I've found posts that say you can replace your oxygen sensors, which still costs around $100 each. The P0420 seems to be emissions related. When my check engine light comes on, I run the highest grade, no ethanol gas, and usually within a couple of tanks, the light goes off again. The last time it happened about 2 wks ago, I put in the 93 octane no ethanol premium and a can of Seafoam and within a half a tank, the light went out. Your problem might be more serious, and I don't know what the 1150 code is, but so far that's worked for me.
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My car came up with a P1150 code for my lexus rx 300. what does that mean?
Tests/Procedures: 1. With the sensor disconnected and the key on, check the voltage at the wire harness side of the connector. The Black wire should have 12 volts the Orange wire and the White wire should be approximately 3 volts.

2. Reconnect the sensor connector and check the voltage on the Black wire on start up. It should remain battery voltage. The Orange wire and the White wire should vary slightly in voltage from 3-3.3 volts but the sensors will not change much.

3. Install a new sensor. Potential Causes: Defective Air Fuel (A/F) Ratio Sensor
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Check Engine light code P0432
P0432 - Main Catalyst Efficiency Below Threshold Bank 2
The ECM or PCM monitors the front an rear O2 sensors. The ECM or PCM detects Warm up Catalytic Converter when the sensors are out of specifications.

DTC is set when the ECM or PCM detects rear HO2S value difference becomes closer to value of front HO2S. The ECM or PCM monitors when vehicle speed is 25-60 MPH, load is 22-45 percent and engine speed is 1000-3000 RPM.

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- Engine Light ON (or Service Engine Soon Warning Light)

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- Warm Up Three Way Catalytic converter deterioration or malfunction. - Exhaust system leaks. - Loose front or rear HO2Ss. - Front HO2S malfunction. - O2 sensors harness or connectors

Possible solution
- Replaced Catalytic Converter - Replaced rear O2 sensor - Repair wire harness or connectors

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My 1994 camaro w/ 3.4L engine has an oil leak in rear of engine. It is running down both sides of the block in rear. Oil filter is wet, but not leaking, the starter and bell housing drip oil and its...
This is most likely a leak from your rear main seal. It happens and can be a pain to replace if you're a DYI kinda person without the nec. equipment.
  1. Raise and safely support the vehicle with jackstands.
  2. Remove the transmission.
  3. If equipped with a manual transmission, remove the clutch and pressure plate.
  4. Remove the flywheel assembly.
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6. Inspect the crankshaft for nicks or burrs, correct as required.
88143g59.gif Crankshaft rear main seal - 5.7L engine

To install:
  1. Clean the area and coat the seal with engine oil. Install the seal onto tool J-34686 for 3.4L engines, J 41349 for 3.8L engines or J 35621 for 5.7L engines.
  2. Install the tool (with the seal mounted to it) onto the rear of the crankshaft. Tighten the screws snugly to be sure the seal will be installed squarely over the crankshaft.
88143g60.gif Exploded view of the rear main seal installation - 3.4L engine
Click to Enlarge
  1. Tighten the wing nut on the installation tool until it bottoms out.
  2. Remove the tool from the crankshaft or rear oil seal housing, as applicable.
88143g61.gif Rear main seal and installation tool - 3.8L engine
Click to Enlarge 88143g62.gif After position the seal on the tool, install it to the crankshaft housing

  1. Install the flywheel.
  2. If equipped with a manual transmission, install the clutch and pressure plate.
  3. Install the transmission.
  4. Check the fluid levels, start the engine and check for leaks.
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P1150 Air/Fuel Sensor Circuit Range/Performance. (cylinder bank 1 Sensor 2)

P1150 may mean that one or more of the following has happened:
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Main seal
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