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Toyota Camry Fuel and Fuel System Questions

98 messages,  Last post on Sep 12, 2009 at 11:34 AM

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#92 of 98 Re: 2007 Camry XLE V6 Air Flow Sensors, Manifold [kiawah] by skoman1 Sep 03, 2009 (7:49 am)
Replying to: kiawah (Aug 30, 2009 10:59 am) Finally got the codes from the service manager, He stated that these codes (P2195, P0171, P0174) had to do with the oxygen sensor's measuring "to lean", therefore sending data that more fuel is needed and the engine is burning more fuel and emitting more emissions into the environment than it should. He stated "Toyota's fix for this includes changing the O2 sensors and also changing the manifold to a newer style manifold which positions the sensors in a better position" I told him it is a very costly repair for me and he suggested an option of just replacing the O2 sensors with the style that is on there now for a cheaper option.   He said another set of codes also appeared (P0441 & P 0446) that deals with some type of air leak in the fuel system, but does not know if that has to do with the above mentioned problem that is all related.   Any thoughts would be appreciated. How difficult is it to change the O2 sensors on my own? Replies to this message: kiawah (Sep 03, 2009 9:30 am)
#93 of 98 Re: 2007 Camry XLE V6 Air Flow Sensors, Manifold [skoman1] by kiawah Sep 03, 2009 (9:30 am)
Replying to: skoman1 (Sep 03, 2009 7:49 am) That is certainly clearer now. They are referencing the exhaust manifold, which is what bolts on to the side of the engine and captures the exhaust gases from the cylinders, and then starts to feed it down toward the exhaust pipes and catalytic converter. An O2 sensor sits before and after the catalytic converter, and the computer uses those engine output signals to adjust the 'input' fuel mixture.....to get a clean burning mixture.   O2 sensors do go bad, and are reasonably easy to replace. Personally, I would think long and hard about replacing the exhaust manifold.....they would normally last forever on engines, there is nothing to wear. I think I'd be calling the service manager and ask them to escalate to Toyota on your behalf. If there really is a new design manifold, and they are stating the old design is designed defectively, then I'd ask for Toyota to eat the cost of the replacement. I doubt that they'd do that, but I'd be asking.
#94 of 98 98camry won't start by trublsm Sep 11, 2009 (3:04 pm)
Car ran lousey for a day then it stalled and would not start.Should I be able to hear electric fuel pump when key is in start posision?> Replies to this message: kiawah (Sep 11, 2009 7:44 pm) trublsm (Sep 12, 2009 5:56 am) wwest (Sep 12, 2009 9:07 am) kiawah (Sep 12, 2009 11:34 am)
#95 of 98 Re: 98camry won't start [trublsm] by kiawah Sep 11, 2009 (7:44 pm)
Replying to: trublsm (Sep 11, 2009 3:04 pm) I doubt it, unless you have really good hearing. I've never heard a fuel pump for any of the vehicles we've owned over the years. Replies to this message: trublsm (Sep 12, 2009 5:56 am)
#96 of 98 Re: 98camry won't start [kiawah] by trublsm Sep 12, 2009 (5:56 am)
Replying to: kiawah (Sep 11, 2009 7:44 pm) thanks fror advice
#97 of 98 Re: 98camry won't start [trublsm] by wwest Sep 12, 2009 (9:07 am)
Replying to: trublsm (Sep 11, 2009 3:04 pm) A DC ampmeter in place of the fuel pump fuse would tell you. Replies to this message: kiawah (Sep 12, 2009 11:34 am)
#98 of 98 Re: 98camry won't start [wwest] by kiawah Sep 12, 2009 (11:34 am)
Replying to: wwest (Sep 12, 2009 9:07 am) The fuse is on a circuit with other things.

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