PO 430 ---is a worn out exhaust converter-bank 2
PO456---Evap System Vent Valve Failure
PO 171 & 174---in your cause old & failed oxygen sensors
closest to the motor
Think you need to start a log book & some type of
preventative maintenance program,not just drive it
codes all cleared except p0171,p0174. car cold starts without problems, idles and drives fine. after car is warm and shut off... wont start again until 1/2 hour later (cooled down) checked the fuel pressure on rail and it is 15 lbs while trying to start warm . still have to check pressure at cold start. I beleive pressure is probably fine at cold start, as it starts well.there isnt any lag or issues while driving highway until the pedal is floored. sometimes it lags at that point ntill pedal is released to normal driving speed.i
You can't operate a fuel injected car without fuel pressure of at least 40 lb all the time ,even at idles,it just deadheads against the fuel rail until used
The 171 & 174 are also an indication of a lean report inside the exhaust converter.
yes, thank you... i realize thisis a problem...just wondered why it runs fine until it is warm..wanting to make sure it isnt another issue commanding the pump to not supply enough fuel, before i change out pump, and find out it is an issue somewhere else.
b.t.w... pressure test at cold start is also 15 lbs.
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SOURCE: intrepid 2.7 error code P0456
this is an emission leak code..could have cracked emission hose at back of engine or on top of fuel tank..check gas cap for corrosion or filler tube for holes
SOURCE: I have a Dodge Stratus 2004. It has 2.7 L - 6
I will post these one at a time...
p0171:
Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.
Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.
You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.
A code P0171 may mean that one or more of the following has happened:
Possible solutions include:
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YA, THANKS PETER,...BUT I MAYBE I DIDNT EXPOUND ENOUGH ON THE ACTUAL ISUES AS WELLAS SENSOR READINGS. F.Y.I....THIS VEHICLE HAS ALWAYS HAD MAINTENANCE RECORDS AND UPKEEP. JUST BECAUSE THESE SENSOR CODES COME UP, DOESNT MEAN ALL OF THEM RE ACTUAL.A LOT OF THESE PARTICULAR SENSORS ON THIS CAR ARE INTERLINKED AND WILL CAUSE EACH OTHER TO CREATE A CODE.TO ME, YOU SOUND LIKE A CANADA TIRE MECHANIC... YOU DONT EVEN ASK QUESTIONS BEFORE DECIDING WHAT THE PROBLEM IS.LMAO NICE TRY AT THE WHEEL THO PAL.
get back to us when you have everything solved,just so we can see how far off we are. There is no reason you can not get the codes & there causes & solutions anywhere you choose on the internet.
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