myGSsoWET

iTrader: (3)

I was planning to buy an IS250 this weekend but the carbon build up stories are scaring me. I checked his Vin and it states

" OTHERS GUEST STATES THAT THE WARNING INDICATORS ARE ON, CHECK ENGIN E LIGHT AND VSC LIGHT - CODE P0031 BANK 1 SENSOR 1 AIR FUEL RATIO SENSOR HEATER CIRCUIT. - DIAGNOSED AIR FUEL RATIO SENSOR CODE. TESTED RESISTANCE OF AIR FUEL RATIO SENSOR HEATER CIRCUIT. OPEN CIRCUIT. REPLACED BANK 1 SENSOR 1 AIR FUEL RATIO SENSOR, CLEARED CODE AND MONITERED AIR FUEL RATIO SENSOR SIGNAL WITH TECHSTREAM."

Is this a symptom of the notorious 250 problems? Thanks in advance

It's a 2008 with 140k on it.

MikeyK02

iTrader: (7)

Save yourself the headache. Get a 350

/thread

Jeff Lange

iTrader: (1)

That is unrelated to the carbon build up concerns with some IS250 models. That was just a bad A/F sensor and it was replaced.

Jeff

FiveSeven

iTrader: (3)

dont the 350's have the Timing chain cover oil leak?? I believe it costs up to 5k to repair...

P128sniper

There was a recall for that I think

whitebeast

iTrader: (5)

Are you sure there is Re-call for it? I don't see it anywhere

MikeyK02

iTrader: (7)

The 250s have the carbon build up and runs 7-8k to repair

FiveSeven

iTrader: (3)

no recall yet for this

Icy350

iTrader: (18)

Carbon build or timing chain. Id rather deal with timing chain. There is no remedy for carbon build up. And you get 100 Extra horses for relatively the same price. No turbo or SC will accomplish anything similar.

myGSsoWET

iTrader: (3)

Thanks for the opinion they all sound scary but I think I'll keep looking for a 350 instead.

SparkLex

I bought a 2009 IS250 in August, and had it in for other things this April. I asked them to run the carbon buildup test and it came back positive so they did the fix for free. If it does have the problem on a used IS250, you're not necessarily stuck with it. I LOVE MY CAR!

Icy350

iTrader: (18)

I think overall the 350 has Less issues compared to the 250. Just what I see being posted on the site. Its usually the 250 thats posting problems

MWIS350

Get an IS350 or IS-F. I used to have IS250 but trade it in after a year.

SparkLex

Yes, I agree. Although I love my IS250 and is now "fixed" of things I was worried about, if you can afford the extra amount (which may be trivial now if looking far enough back), definitely go for the IS350 if you can. Happy Hunting!

Aspect

Definitely get a 350. I've got an 07 250 and I'm starting to see them everywhere, but I've yet to see a 350 in the wild. So far with 110K Kms, still no major problems and I try to keep the carbon issue at bay with some WOT whenever the car is warmed up.