just have to say this is a great site have been on for a while just decided to actually register. so anyway here is the problem p0068 map/maf throttle position correlation p0109 manf ABS pres/baro pres circ interim p1000 p300 random misfire p0303 misfire #3 p0307 misfire #7 p0308 misfire #8 p0171 bank one too lean p0174 bank two too lean p0316 misfire in the first 1000 rpm. i replaced the coils in #3 and #8 before the #7 code came up and replaced all plugs nothing had changed dont even know where to start any help would be great thanks

 

Whoa.....For starters what kind of truck/year...What kind of coils did you use? 0171 &0174 could indicate a vacuum leak, but witht the 0068 you might want to try cleaning the MAF, checking your PCV, checking vacuum hoses for pinholes/ leaks....What problems have you had with driving, if any? Any mods to the truck?

 

yeah good call ha ha 06 f150 110 000 miles on it, it runs like crap and sure cant tow my work trailer. doesnt stall but barely idles it has only the superchip in it, i thought maybe a problem with the program itself so i reset back to stock still the same problems

 

Major vacuum leak somewhere. PCV elbow?

 

i will check that could a vacuum leak set off all those codes?

 

Check fuse 34 in box under the hood

 

yes
anyway it is the place to start

 

sounds like a vacuum leak....

 

If you do an analysis of all the codes first, you can see a certain pattern.
The code 68 is crank no start. Code 300 is randum miss, 316 is miss first 1000 rpm.
This is a clue pointing to 'ONE' fault being detected in three different ways.!
The 109 and cylinder codes could be a secondary result from the cause.
First thing to do is check that all sensor connectors are on tight and firm by exersising them for corrosion and on the crank position sensor especially.
This sensor no worky, the rest of the gang don't sing either, without a leader.
Then clear the codes and see what comes back.
If more codes, proceed on with troubleshooting.
The 1000 code is not a regular fault code but the results of DTC codes being set and cleared by code reader and will be present until all codes are repaired and enough drive cycles are done without a fault, to clear the 1000 code.
Good luck. It's not as bad as it looks.

 

I have a 01 Ford F150, and my compter is reading P1000. Blugrass your saying all I have to do is drive it for a while and this code will go away? Do I need to have my computer reprogramed.

 

IF there are NO other codes indicating a fault.
the P1000 will eventualy clear.
The 1000 code 'monitor' is looking at up to 8 groups of other monitors.
If one of those 8 monitors do not clear, the 1000 will be present until it does.
This takes several drive cycles for the PCM to test all parts of the system from cold start, accelerations, varying speeds etc in a peticular sequence.
You have little control over the testing except to drive the truck.
No reprograming will eliminate the P1000 code because even after reprogramming, the PCM still has to do all the testing to see that sensors on the motor are all good exclusive of the program it'self..
Sometimes the P1000 will clear in as little as 50 miles, sometimes several hundred miles, in several drive cycles are needed.
Sorry but that's the way it is and even a dealer can't get around it.
The only time it's a problem is when your up against inspection.

 

Thank you for the info.
My truck has a misfire, and my check egine light is not on. It only happens while im giving it gas. I went to auto zone for a test and it passed, but i still have the misfire. I changed out the spark plugs, added injector cleaner and it ran good for 2 days.I dont know whats going on with it. Will my computer tell me whats going on even thought the P1000 code is coming up? Please give me some advice on how to solve this problem.
I have a 2001 F150 5.4L 4/door.

 

First thing you need to do is give us some details on your truck - year, engine, transmission, miles.

 

To Marquis:
Your PCM won't give you the code info on your stumble type of problem.
Since you did the plug replacement and injector additive, this suggest you have one or more LOW OUTPUT coils (not outright failures) that fail under 'certain' operating conditions.
I would detail the cause if you think you need to know.
The only way to solve for this is to do one of the following;
get a dealer stress test all coils to find the ones that have low output, or replace them all with the understanding that replaceing them wholesale 'could' get you into a situation of one new coil being faulty or has low output and still not knowing which one it is..
Nothing is ever guarrenteed until it is all solved for.
Letting a dealer do the work get's you a guarrentee they will replace coils until a good full set is in place.
The cost is high but you get the fix with it, should get some warrenty time, and it's done.

 

I have a 2000 and just had the same issue, ordered a whole set of COP's off Ebay, replaced them along with plugs (went back to Motocraft from Bosch) and truck is A-1 And again thanks to some of the guys on this site.