White smoke and ECT issues - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 10-10-2019, 05:05 PM Thread Starter
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Hey, I have a 1997 F250 7.3. Its had a pretty hard life. It smokes white on startup (raw diesel, not coolant) and now does it almost all the time as its getting colder here in Saskatchewan.

I hooked it up to my elm327 scanner and FORscan.
My ects went up ok until about 50*celsius (122*F) and then it all of a sudden said -160*C
I imagine the other reading that always says -40 is the one i shouldn't be reading.

I have two screenshots of the gauges.

Error codes were
P0470
P1212
P1211
and then my battery light came on before i shut it off.
The oil temps were too low to run a cylinder contribution test.

What do you guys think?
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Last edited by KyleCook; 10-11-2019 at 03:42 PM. Reason: Clarify about the white smoke.
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post #2 of 5 Old 10-11-2019, 05:52 PM
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The ecm in these trucks dont monitor engine coolant temp so the tool you are using is correct.
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post #3 of 5 Old 10-14-2019, 08:06 AM Thread Starter
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Ok, thanks. Any idea about the codes? I'm just wondering if the codes could be related or seperate. I replaced the ipc sensor with a cheap Amazon one and it made no difference. My original was leaking through the connector.
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post #4 of 5 Old 10-14-2019, 09:07 AM
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P0470 is the exhaust backpressure sensor, check and clean the exhaust backpressure tube and possibly replace the sensor

P1212 and p1211 are hpop related codes, make sure the engine is full of oil, it's possible to have a bad oring on the ipr which is mounted on the hpop. Remove it and inspect it and the orings for visible issues, also check to make sure the tin nut is secure and the assembly is installed all the way and installed correctly.
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post #5 of 5 Old 10-16-2019, 01:30 PM Thread Starter
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Sweet, thanks. I'll check those out.
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