99 RX300 Multiple Code Issue Help

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May 23, 2018 | 11:03 AM

Scotty86

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From: New Mexico

99 RX300 Multiple Code Issue Help

It's idling very roughly, almost no power, and when it does get power it's just a surge and barely goes at all. I got it to the near by auto parts store and got the code ran and 9 came up. I'm just trying to figure out what needs to be replaced to fix it. It happened suddenly with no symptoms that anything was going wrong. Here's the list:

1. P0125 - Insufficient Coolant Temp. For Closed Loop Fuel Control
2. P0171 - System too Lean (Bank 1)
3. P0172 - System too Rich (Bank 1)
4. P0300 - Random/Multiple Cylinder Misfires Detected
5. P1133 - Air/Fuel Ratio Sensor Circuit Malfunction (Bank 1 Sensor 1)
6. P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
7. P1305 Ignition Circuit Malfunction (Bank 2 No 2)
8.P1315 Ignition Circuit Malfunction (Bank 4 No 4)
9. P1325 Ignition Circuit Malfunction (Bank 6 No 6)

If anyone can help it would be greatly appreciated, I can change bout any part, but figuring out which one is where I have a hard time.

May 23, 2018 | 11:11 AM

salimshah

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From: Austin, TX

Please reset all codes and re-read on the first onset of CEL.

Salim

May 23, 2018 | 11:18 AM

Scotty86

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From: New Mexico

Quote:

Originally Posted by salimshah

Please reset all codes and re-read on the first onset of CEL.

Salim

I drove it very slowly to the Auto Parts place to have them ran, I'll have to either see if I can rent it and take it back and try that again. Those I don't wanna burn a valve or piston.

May 23, 2018 | 12:40 PM

Scotty86

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From: New Mexico

Quote:

Originally Posted by salimshah

Please reset all codes and re-read on the first onset of CEL.

Salim

How likely is the it that the Air/Fuel Ratio Sensor (Bank 1 Sensor 1) is the cluprit for all these codes? Seems like if that's wasn't reading correctly it could effect the ignition system and and mess with the other stuff?