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P0301 p0302 p0303 enigine missfire have live graph results p0302 caused freeze
2007 Ford F-150

P0301 P0302 P0303 enigine missfire Have live graph results P0302 caused freeze

(2007 Ford F-150)
A month ago i had what seemed like the same misfire which gets worse over a week then it falls on its face. i have a scanner and graphed it live. last time i took the egr off and cleaned it and the throttle body off and cleaned and checked a hundred times for vac leaks etc. Its ran fine for a month and even got it inspected no problems. last week it started running horrible again/ undrivable with the missfires Frame this time says TP 38% eng 2450 rpm Baro 29.2 calc load 88% MAF 10.03 lb MAP 26.9 fuel rail 41.89 psi ABS 71% FUEL SYS 1 Open Fault fuel sys 2 N/A ? all acc pos look good (EGR ERR -65.6 %)? what is it supposed to be? EGR CMD90% commander evap 0 % CMD .924 02 B1S1 .315 FT B1S1 28.9%, 02 B1S2 .875 02B2S1.640v FtB2S1 3.1% 02B2s2 .700V WHAT seems to be main fault. also on the back side of intake plentum is a port where 2 small coolant flow lines hook up and one metal nipple comming out of back of manifold has small leak small small but who knows (what is the name of that part also. Anyways any help as far as this goes would be highly appreciated
3 answers & 13 comments
Popular Answer
on May 11, 2014
Fuel sys 1 open loop.....dont see coolant temp!! How warm was the engine when data was read?
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on May 11, 2014
171 degf intake air temp 75 degf
on May 11, 2014
Ok, now you have to find out why it was running in open loop while engine was at operating temp!!! 02 heaters working?
on May 11, 2014
okay, what are the possible choices i have to choose from on that aspect or testing precedures
thanks a million
on May 11, 2014
Too many possibilities to type out here!! Problem seems to be on the passenger side cylinders. Get some hands-on help checking it while live data is active....from cold start through warm up. Tip, watch 02 sensors and loop status.
Good luck with it!
on May 11, 2014
Thanks for your advise, this has been one of those, wish it didnt have all this new electrical sh** these days haha. You think it could possible be one of the 02 sensors becoming faulty as engine goes from cold to warm.? what does the egr and commander egr percentages usually range? it does say EGR error -65% but i guess that could be caused by open loop status and then commanded EGR CMD reads 89.8% also what are the possible choices of it being the 6 pack coil since i replaced plugs and wires already
thanks
on May 12, 2014
It's near impossible for ANYONE to tell you what the problem is exactly! If we were standing there with you looking at the live data screen (pferable on my Modis) we could most likely pinpoint the problem....along with some functional test, that is why i stated get some hands-on help..Also never said to replace any parts but the 02 sensor is the last sensor in the engine operation input and can be very helpful as a diagnostic aid..so again, good luck with the diagnosis!!!
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on May 11, 2014
Fuel sys 1 open loop.....dont see coolant temp!! How warm was the engine when data was read?
Sign in to reply
on May 11, 2014
171 degf intake air temp 75 degf
on May 11, 2014
Ok, now you have to find out why it was running in open loop while engine was at operating temp!!! 02 heaters working?
on May 11, 2014
okay, what are the possible choices i have to choose from on that aspect or testing precedures
thanks a million
on May 11, 2014
Too many possibilities to type out here!! Problem seems to be on the passenger side cylinders. Get some hands-on help checking it while live data is active....from cold start through warm up. Tip, watch 02 sensors and loop status.
Good luck with it!
on May 11, 2014
Thanks for your advise, this has been one of those, wish it didnt have all this new electrical sh** these days haha. You think it could possible be one of the 02 sensors becoming faulty as engine goes from cold to warm.? what does the egr and commander egr percentages usually range? it does say EGR error -65% but i guess that could be caused by open loop status and then commanded EGR CMD reads 89.8% also what are the possible choices of it being the 6 pack coil since i replaced plugs and wires already
thanks
on May 12, 2014
It's near impossible for ANYONE to tell you what the problem is exactly! If we were standing there with you looking at the live data screen (pferable on my Modis) we could most likely pinpoint the problem....along with some functional test, that is why i stated get some hands-on help..Also never said to replace any parts but the 02 sensor is the last sensor in the engine operation input and can be very helpful as a diagnostic aid..so again, good luck with the diagnosis!!!
on May 11, 2014
One other question for you. When you monitor the live data , at idle , is the MAP sensor reading steady or fluctuating? Pushrod will know what to do with that info, I'm pretty sure.
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on May 11, 2014
you know i have wondered that map sensor forever. just cleaned the hell out of it correctly a month ago and now that you metioned that I have wondered the same at least 3 times but havent provoked to monitoring just was going to clean it again. I have a quarter of this motor apart so once i get it back together ill inform you. I was wondering what i slept on last night and i think thats one of the answers to it clearly. Needless to say i didnt want to put everything back together when i had a couple of problems along the way to just check that. I think you are on to something there becuase the few other fords i worked on like that always had some issues with the sensitivty with the intake air. but i was always looking for vacumne leaks on other (manifold side). what is that map actually supposed to measure? if its dirty or shorted it can cause those codes? what would it need to fluctuate between
thanks for your time
jon
on May 11, 2014
If it fluctuates it could indicate a problem related to the valvetrain , but again I'll repeat , Pushrod is more familiar with Fords and would be more likely to go in the right direction with the info. Good luck.
on May 12, 2014
Focus on pushrod's assessment about bank #1 having the problem. B1S1 O2S is telling you +28.9% which indicates the pcm has readjusted fuel trim for bank #1 as far as it can and the issue is still present. Do you have an exhaust leak on the bank #1 side, bad spark plug, or bad plug wire, or as you mentioned, coil, or bad fuel injector, or bad wiring to the bank #1 side injectors, is your secondary air system leaking air past the maf sensor? The three P030X codes in the heading are for multiple misfires on cylinder #1, #2, and 3. Does your truck have a variable valve timing setup that might have a clogged filter, or defective vvti solenoid on the bank #1 side? If so, clean both bank #1 & bank #2 vvti filters, and change the engine oil and filter.
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on May 12, 2014
Just to clarify , I didn't say clean or replace I said 'monitor' reading. Can tell a lot.
on May 13, 2014
I just don't see how the map sensor would be a likely cause as the Bank #2 o2s reading isn't as far off as the bank #1 o2s reading.
on May 14, 2014
thanks for all the advise thus far. worked on it all night getting it back together. Replaced the pcv vavlve since its been shorted, replaced the plugs and put a new set of wires in here, then unkooked and cleaned pretty much everything from the back of the motor and intake exhaust. looks like a coolant water jacket of some kind. cleaned Mass air flow sensor and everything as far as checking cleaning and re-pining any wires that looked to be pulled out of there harness, cranked it an hour ago and bam theres a code as expected. ive had the battery unhooked for a couple days so i knew there would be some foul play. The codes are as follows P2104. P2112. ive cleared the codes ive checked wire connection again. hand opened throtle body to look. what should i do
on May 16, 2014
misfire the same?
on May 19, 2014
Well the update, sorry for the time its just i have 2 boats an a jet ski that are all on the ropes. anyhow when cranked for the first time again i have codes with the throttle position sensor or something thats cause it to fall in to "failsafe mode" which i know drops the cylinders to save you a** ive went through everything an just cant get it. ??thermostat?" when i unplug the canister it idles way better but it really sounds fine just in fail safe mode and wont let me out of it

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