Question about 2007 Toyota Tacoma Double

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2005 Toyota tacoma issues.

I hooked up my Tacoma to a diagnostic machine and it came up with the following numbers 171, 174, 420, 430, 441 & 445. The truck tends to stall after getting warmed and driving for a while. Mostly when trying to go uphill it's been ongoing problem that i just can't seem to get a handle on.

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  • Anonymous Dec 10, 2012

    The only issue I have with the questions we get is when you say it has been ongoing & you can't do something I personally stop using any vehicle immediately & start testing even if it takes week to resolve,you need reference material or you don't know what your working on



1 Answer

171 & 174--O2 Too lean each bank

420 & 430-common Converter Codes usually for
failed converter,but your vehicle is sort of new

445-Evap Purge Valve Circuit Shorted

Sorry about the short & poorly displayed codes

I would be here all day telling you things as other experts do,
just to make it look nice

I suggest you google the codes & study them

You 2 upsteam O2 Sensors may have slowed down & set
the faults as they should be over 100,000 miles

The rear monitors are a bit of a mistery as the converter
should not be bad just yet or the 2 rear O2 sensors

The evap code & purge valve you have to diagnose for sure

Working in you driveway with only a code reader,no experience
no factory manuals & charts to follow or test equipment,you
hand cuffed

I would only do the 2 front sensors based on mileage,check for
any vacuum leaks & the purge valve may be the entire problem
but only when that monitor runs

You really need professional scan software so you can take it for
road test

Posted on Dec 10, 2012


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SOURCE: have p0130 and p0133 codes 98 toyota tacoma

I would check the O2 sensor, and if it checks bad, replace it, and clear the trouble codes. If the light comes back on, you may need to check further. .

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