Codes are popping up up again and car just randomly dies for no reason but seems to start right back up till recently! Wouldn’t get past 2500 rpms and pressing throttle did nothing codes are 40-7 and something about catalyst efficiency deterioration

 

almostfinished telling us the codes............

 

lol oh teah i was trying to keep it short i guess but forgot .......... anyway they are 154-1 ,153-1 ,165-1 ,109-2 ,40-6 ,151-6 ,152-6 ,40-7 ,165-1 ,26-4 ,. the 40-6 and 40-7 and 109-2 i think are the newest ,most recent codes that came up but they are all poppping up . thanks .

 

from reading other posts it would seem im gonna give the tcm a go or the tps .ive got an extra of both so .....

 

Well i dont know whats happening with this car. . Mabey im all outta resources to keep trying the" at home mechanic thing ". Mabey its time to get it to someone with more high tech resources .

 

never give up ! im in too deep codes are as follows and some have been there for a while some are new
the old ones are:

po175 fuel system too rich front bank
po 172 fuel metering too rich right bank
po420 catylyst b1 deterioration

this one came on a month ago on and off then dissaperared till recently when the car started acting up ;

p2279 intake air system leak

these are the new ones;

p2101 throttle actuatorsystem malfunction
po135 ho2sa/f sensor b1s1heater cicuit
po155 nho2s a/f sensor b2s1 heater cicuit
p2176 throttle actuator control system not learned

now will these tie together i read a post about the throttle body and and or changing the app or the tp sensor .

 

This really sounds like you have electrical issues. Getting O2 heater circuit codes from both banks is for sure not normal and highly unlikely. How is your charging system? Battery? Cables? Have you had rodents chewing on wires?

 

can someone please chime in ? i had so much response and awsome help on this forum before but it seems im dead in the water now . please help

 

as far as i know i haven't seen any chewed wires or anything or evidence of any rodents . not sure the history of the car like if it was flooded or whatnot
no wires that seem added or out of place like someone boogered it all up ...........is there any way i can test the computer or something ?
i do know the navigation to be intermittent but mostly just logo then turns black screen.
battery is brand new no charging issues and cables seem secured .

 

Do you mean a scanner?

Troubleshooting will depend on your skills and the tools you have available. So you have a couple of options:

1. DIY troubleshooting to find the actual cause of all your problems and then buy the parts (most time and work required by you)
2. Throw new parts until it fixes your problem (can be the most expensive)
3. Take it to a professional to get it diagnosed (fastest route)

 

get an OBD-2 scanner and it'll tell you the codes and where to start troubleshooting. The codes you gave us don't help.

 

At this point it sounds like @El_Cheapo is giving you the best possible advice; get the car to a professional to diagnose.

 

The mods should consider making it a requirement for people to add basic info to their threads. Often times it feels like we have pull that info out of them.

Things that would be helpful:

1. DTCs
2. Clear description of their issues
3. History of the work performed and parts replaced
4. Any kind of diagnostics they have performed

 

It's a "help us help you" mentality... unfortunately for most posters, it may be a "i don't know what i don't know"-type scenario or... it could also be a "spoonfeed me" type attitude as well. Typically the same people will get mad at us for not helping them, by fail to provide us with all the information needed to do so

 

Agreed, this is one of the most helpful and least divisive automotive related sites I've been on over the last 20+ years, but hey, helping someone without all the facts is a tad difficult.

 

no i mean the computer that is in the car , the one that tells it how to run . ive got an obd2 scanner and listed all the codes that were stored earlier on . as i stated also i really dont know what to list other than i bought the car and redid the heads from overheating and everything in between like timing belt to gaskets to radiator ... like everything all plugs seem good no broken wires nothings missing really thats why i think checking the computer or something may be off . like why is it always running rich ,. always have those codes . i dont wanna bring it in due to the cost but mostly cuz everyone knows they will more than likely screw me at the dealership with a bunch of crap . so im trying to get an idea at least to someplace to start looking for a fix

 

wow i just typed a book on the history of this car and it just dissapeared wtf
/

 

The only way to test the computer is to communicate with it by using a bi-directional scanner, and you also have to look at the live data to see what the PCM is doing or seeing from the sensors. The Launch X431 Diagun V is the cheapest that I can think of.

Simply using a scanner will do you no good if don't know how to determine what is good and what is bad. You will need to know what to look for when you look at the live data.

Well, that's a lot of work you did on that car, which includes removing the throttle body, the injector fuel system, and all the harnesses. There is a lot that could have happened. Did you have those codes before you removed the heads?

The most common way a computer can go bad is by shorting an injector or ignition coil or any other solenoid. There's also the common AC drain moisture problem where it drips onto the computer.

Don't take it to a dealership. Take it to an indy shop because it's cheaper. It's a Honda not some exotic.