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Originally Posted by Xpit77
Check and clean MAF.
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Quote:
Originally Posted by Stl-986
you should check & fix this before you do anything else
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Quote:
Originally Posted by ike84
I agree with both of the above, especially the coolant leak.
Before you changed the oil, the car ran without issue? Like no issues whatsoever? And then as soon as you changed the oil you started having issues? If that's the case then I would worry something got buggered up here. What type of oil did you use? What type of filter? Is this the first time you've changed oil on this car? If so, what exactly did you do?
I had an old boss who always said "wherever there is an issue, look to where the hands of man have been". Very poetic way of saying that if you've got a problem after doing something, it's most likely you've got a complication from the procedure.
Sent from my POCOPHONE F1 using Tapatalk
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Quote:
Originally Posted by Aanic
You didn't tell us if you found anything in the parts you cleaned. My 2.5 had the same issue. Once I cleaned the idle control valve it ran fine. Then it started having the issue again and when I opened it that time the inside of the valve, throttle body and intake has chocolate milkshake in it. Just previously I had a coolant low without a leak.
Just got my replacement engine yesterday as the intermix was so bad I'd lose 2 gallons of coolant into the sump in a 5 minute drive.
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Coolant leak fixed. It was a hole on a pipe.
Disconnecting MAF the car works so much better (starts with no problem and 800rpm idle but still fluctuates a bit). So,
I plugged another MAF (from junkyard) but it gives me the same as before.
Reading codes (with the second MAF):
P0130 oxygen sensor ahead of catalytic converter (cylinders 1-3)
P0150 oxygen sensor ahead of catalytic converter (cylinders 4-6)
P1117 oxygen sensor heating 1 ahead of catalytic converter
P1121 oxygen sensor heating 2 ahead of catalytic converter
P1318 misfire, cylinder 6, emission related
P1316 misfire, cylinder 4, emission related
P1317 misfire, cylinder 5, emission related
P1313 misfire, cylinder 1, emission related
P0306 misfire, cylinder 6, damaging to catalytic converter
P0304 misfire, cylinder 4, damaging to catalytic converter
P0305 misfire, cylinder 5, damaging to catalytic converter
note: european car so it doesnt have the other o2 sensors (behind)
Maybe I was unlucky buying the MAF from junkyard?
The misfires are concentrated in bank 2. Could it be an o2 sensor?