First off I drive an 03 Durango SLT 4.7L 4x4. I replaced my TPS a while back.. (a couple posts ago) and it ran fine for a month and a half or so.. and today it ran NASTY! threw a P0203 and i had oil dripping out of the exhaust. BUT ONLY IMMEDIATELY AFTER I WASHED MY CAR! inspection under the hood revealed that water had gotten under my hood and was on the fuse box and the wiring and PCM area (didnt make it as far as the injectors). checking the wiring tomorrow as its dark out now. at least i know that it has to be an electronic issue of a sort. I would appreciate any and all input.. hell.. email me at bradford88@gmail.com if you got any good advice.

Things I've already done..
replaced TPS
replaced Air Filter - MIL went away by itself when i did this. but problem persisted later
gotten a new battery- seperate occasion.. my battery died in the middle of all this.. lol i know thats not the problem.

gonna change spark plugs, however mine are lodged pretty good..(even tried PB blaster overnight).. didnt sit and think that the dealer probably didnt change them.. gonna let napa do that. dont wanna risk ripping a plug apart and blocking my path to Narnia..

gonna check the wiring... dont have an analog multimeter to test the injector wiring for volt peaks(only got a digital).. and i got more important things use my money on right now other than noid lights. (i know their cheap)

hey i appreciate any help guys.. this is a daily driver

 

Full tune up and check the fuel pressure.

 

alright its been a while. but my p0203 issue is back again. its not the TPS, so im gonna start testing again on the injector itself. and i did get the full tune up. i'll check the fuel pressure also even though i'd think that would trigger random P020X codes. im going to switch injectors to see if the code changes to another cylinder and rule out the injector. i think the DTC is accurate. i think it is a wiring issue.

anyone who has a 4.7 liter 03 durango.. to the rear left of the engine compartment (if your looking from the front of the car) there is a ribbon of bare metal wire that appears to be a ground of some sort WHAT IS THIS THING???

 

Pictures please.

Switch the injectors like you are saying. Could also be a crankshaft sensor.

 

Ok so i ohmed the injector and it checked out, then i checked the volts going into the injector and it recieved a pulse (just like it should, i need to check it again because i dont remember what voltage it was recieving but im using a 30 dollar multimeter.. it would pulse to like 35v and drop down. its digital so its hard to see what its really peaking at. and yes i know it shouldn't be more than 12 volts. ) i need to see what the injector 1 is recieving so i can compare. also what i noticed is that the injector has a lot of play, i can swivel it around. and when i was plugging the 3rd injector into the first injector, it made a snap sound and now the first injector swivels. could this be a problem? should i just replace the injectors since they're not too hard to replace. the others dont swivel around either. i can nab one for like 70 bucks. ( i saw the whole fuel rail for 200 bucks with injectors attached on craigslist but its used) if i get this fixed and it stays that way for two consecutive months i'd be tempted to mail the main contributor a modded xbox 360 i got lyin around. as this problem is pissin me off something AWFUL!! and i bought thet 360 for 50 bucks and fixed it so it wouldn't be much of a loss to me: )

 

oh and also i have a hard time starting it.. i start it and have to pump the gas (just recently has this started but ive had the p0203 code for a long long time and i'd just reset it and kind of idly work on it) so it could be the crank position sensor but that only normally* stalls your car when your moving im pretty sure. i dont know, maybe there's a blockage in the fuel path or something.

 

also it likes to stall out at stop lights.. this is normally an very intermittent problem but recently it has been kind of permanent

 

Alrighty.. sorry for the triple post. but i got an update ( other than hydroshock im not getting too much help but im posting all my progress for people who have the same issue in the future to check out.

I popped the hood and tried to crank the motor and i had to give it gas to turn over, and it would idle really low. if i give it gas and let go, it will almost die and then come back to idle at around 500 rpm. It also seemed that cylinder 3 was missing even though i dont get the trouble code for it

next I tested various sensors via methods the autozone guide they sell.. oxygen sensor, idle air controller, throttle position sensor, crank position sensor.. etc. all seems fine.

checked the PCV valve. i couldn't get it off because the ac lines were in the way but i just kinda shook it around.

i reset all the codes that were thrown from unplugging sensors

then after that it seems to be running fine with no codes HOWEVER it is a very intermittent problem and will probably do it again. it doesnt seem to be missing anymore on cylinder 3 at the moment however it is smoking through the tailpipe and smells like premix gasoline like a jetski or something. Either oil is burning OR it could be seafoam that i put in it a while ago right before cylinder 3 went on the fritz and seemed to stop working. maybe i pumped enough gas to clean the injector or something. i dont really want to drive it anywhere to test it haha i dont want to get stuck anywhere. i dont want to go floor it to get seafoam out in case it is oil... so im just gonna drive it causually for a little bit. hopefully it will quit smoking.

another thing.. its kind of funny but if i put a screwdriver to injector 3 and listen to it, i can hear it clicking even if i get the p0203 and it feels like its missing. it could be the PCM as well. im just trying to rule that out last haha

 

Hope you are doing well on this one. I've been out on it because you are all over the place on your issues. Oil out the tail pipe, car washes, wet PCMs, replaced sensors that are fine and then aren't but then are, injectors bad or good or bad, xBox 360s for $50, etc. I'm lost and I can't keep up, sorry!

On your low idle stumble, dying, stalling etc... you have a bad battery. Especially if it is a cold engine symptom.

IndyD

 

1. Have the battery load tested and clean both terminals.
2. Pull the TB and clean it out really good. Clean the IAC and everything else regarding delivery.
3. Could be particals moved up from the fuel pump or deposits inside the fuel rail or on the way in the line from it.
4. Fuel pressure test.


Then reset the PCM.