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Temperature insufficient for closed loop operation. Don't assume the thermostat is faulty. The code is set due to a faulty O2 sensor heater. There are three O2s. The code is set by one of the front sensors located in the front or rear exhaust manifold. The sensor after the Cat is not the problem.
What else can I help you with?
What is P0125 for 1998 Toyota tacom?
Trouble code P0125 means: Insufficient Coolant Temp For Closed Loop Fuel Control
How can you manually release the emergency brake on the 1998 Toyota Sienna?
How can you manually release the emergency brake on the 1998 Toyota Sienna?
How many belts does a 1998 Toyota Sienna have?
one
Does the 1998 Toyota Sienna have an interference engine?
The 1998 Toyota Sienna does not have an interference engine. This is what makes the engine to be quite sensitive as interference engine design is easier and safer to replace.Ê
How do you repair electrical short on 1998 Toyota Sienna?
Where is the short at? What is malfunctioning?
What is the recommended fuel octane grade for a 1998 Toyota Sienna?
46
Where is the EGR valve located on a 1998 Toyota Sienna?
there isn't one
Where can you find replacement radio knobs for a 1998 Toyota Sienna?
You can find replacement radio knobs for a 1998 Toyota Sienna at auto part stores. You can also find replacements by contacting the radio manufacturer.
Do you have to push the overdrive button on your 1998 Toyota Sienna?
yes i have overdrive button
How do you change rear sliding door handles driver and passenger sides on 1998 Toyota sienna?
The same question for a 99 Sienna was answered on this site by referencing www.findonefindall.com/toyota-sienna/ The price quoted for the handle way $65.
How much cost to replace a timing belt and water pump on 1998 Toyota Camry?
how much does it cost to replace the timing belt in a 1998 Toyota sienna.
How do you slow down the idle speed on a 1998 Toyota Sienna?
fix the vacuum leak
