2004 Lexus IS 300 - Page 8 - Answered Questions & Fixed issues
I scan the Lexus 460 2007 model with the catalyst and the following codes were generated.PO420 and PO430.
The codes are listed as,
P0420 = Catalytic converter system, bank 1 - efficiency below threshold.
P0430 = Catalytic converter system, bank 2 - efficiency below threshold.
Were there any other codes? It just seems strange that both have tripped a code at the same time. When was the vehicle last given a major service?
Try these cheaper checks first.
- Use a good quality Catalytic Converter cleaner that you add to the fuel. Run the vehicle until the tank is almost empty, then refill with fresh fuel.
- Service the vehicle. Change all the filters, (Air, Oil, Fuel), replace the spark plugs and install new spark plug wires.
Then clear the codes using an OBD2 scanner. It may take most of the new tank of fuel for the system to reset itself.
- Next, get the O2 sensors in the exhaust checked. They sometimes get coated in soot and carbon over time clogging the sensor. Depending on how bad they are you might need to replace them. Some can be cleaned but your probably better off paying a mechanic to do this as they can be an absolute nightmare to remove without the right tools. I'm 180 pounds and my body weight didn't loosen mine!
- Lastly replace the Catalytic Converters. This will definitely be the most stupidly expensive option.
3/9/2021 6:03:14 PM •
Lexus Cars &...
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Answered
on Mar 09, 2021
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737 views
GX470. Why can't it be started?
I don't know the cure but it is probable the car's brain thinks the ignition key is still in the ignition, steering not locked - you did the impossible, probably because the key, lock and interlock is worn and that being so it might be possible with some fiddling and gentle tapping of the lock to either cause the steering to finish locking or to reverse the process.
I think the steering must lock before it will accept the key. If fiddling with it doesn't work, I think it could become expensive and inconvenient.
12/28/2020 4:37:55 AM •
Lexus Cars &...
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Answered
on Dec 28, 2020
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270 views
2006 IS250. What does code B2799 (Immobilizer) mean?
Were the keys New and set up by the dealer or a key specialist? If new keys had no effect the problem could be an issue with the immobilizer in the vehicle itself. This could be the key, the immobilizer control unit or the main ECU. These electronics might not be communicating with each other correctly.
I would suggest you get a good Auto Electrician to look at the vehicle's electronics to see if he can find where the issue is.
11/12/2020 12:22:44 AM •
Lexus Cars &...
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Answered
on Nov 12, 2020
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591 views
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