Golf IV / Jetta IV :: 2000 - Bogs Under Acceleration - Cylinders Misfiring?
Dec 15, 2014
My friend has 2000 12v vr6 auto and recently he experienced his car bogging under acceleration. He had the plugs and wires recently done to solve the problem and the problem went away for a day and has since returned. I scanned it and here are the codes that its threw. After doing some research i'm thinking its the coil pack, since it was pretty foggy/damp today (when the problem started again).
17626.p1218 - fuel injector for cylinder 6 (N84): short to b+
16690.p0306 - Cylinder 6 Misfire Detected
16684.p0300 - Random/Multiple Cylinder Misfire Detected
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So last night i was driving and i made a turn onto the highway and speed up to pass this slow ass car :thumb down: and as i did i lost acceleration and my car started to rumble like when you use a high gear when u make a turn while moving that slow acceleration. And as that happened my engine light turned on and my EPC so i drove it well barely made it home. i had a friend with his VAGCOM come to see whats wrong it said cylinder 1&3 are miss firing so he took his ignition coils out of his car swapped them in my car and we drove it around and it drove fine and no fault codes. so now my issue since i have GIAC, CAI and APR full exhaust if my warranty will cover to have them put new ignition coils since i did get an extended warranty. I'm just afraid they won't.
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Is it possible that disconnecting battery causes a misaligned throttle body, which in turn causes the EPC light to come on? And does a misaligned throttle body also cause misfiring cylinders (1 & 2 in this case)?
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So I have a 2004 jetta GLI (1.8T) with forge splitter valve and short ram intake. I went and got my codes pulled and all 4 cylinders misfiring and random misfires. I replaced both coil packs and spark plugs. check engine light popped up again after about 20 miles and same thing. I just bought the car so I'm not sure how long it has been running with these misfires. I just got the timing belt replaced. I know it could be off a tooth. (Wouldn't a code pop up though for it?) How could I check that. And I also took my MAF sensor off as well and no change. Heard it could be clogged cat, any way to check? I've also cleaned the throttle body. It runs fine when I'm driving, just a rough idle.
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So as I was heading out the other day, the car had low acceleration and engine shaking. The check engine light started flashing.
Checked the codes at the parts store: P0300, P0301, P0303.
I just dropped it off at the auto repair shop.
Could it be a I'm just wondering if I shouldn't have taken it to the dealer as the printout says it could be a CPU issue?
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Firstly, my car is a 2001 with a 1.8T, 5 speed manual. It has APR's 93 with the mode-switching software, a FMIC, a short ram air intake, the SAI delete and the original DV (used to be a Forge 007). I bought the car in 2008 and it didn't have this problem until the following winter, sold it in 2012 and recently bought it back from the guy I sold it to.
My car will start and idle great, and accelerate through first gear without problem. In second and third gear, when it hits around 3000 RPM, it just suddenly starts to sputter and run like crap and not get any kind of boost. Fourth and fifth gear, I can run it until it peaks and it'll never miss a beat. It only does this when it gets cold outside (sub-30 degrees) and is perfectly fine the other nine months out of the year. I usually don't drive it in the winter if it's avoidable, but I have to travel a lot this year and would like to drive it instead of my truck.
In the past few years/15K miles, I've replaced:
- All four coilpacks
- All new spark plugs
- New coilpack harnesses
- Catalytic Converter
- Throttle body (twice)
- Diverter valve (back to stock, other owner did it)
- SAI delete (other owner did it)
- Fuel Filter
- O2 sensor
- ECU (the factory one got shorted and had to be replaced back in '08)
I've also gone through and checked every vacuum line and can't find any leaks (including spray testing). My CEL is on due to the SAI delete. I've tried it in both the stock and APR mode and it doesn't make a difference.
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2000 Excursion V10.
Recently cylinders 1,2,3,4 wend dead on my wife's Excursion. I searched here for a pin out diagram so I can check all the wires from the coils to the PCM. I changed the coils on those 4 cylinders with no change and then swapped them with the coils on the left side of the engine. the problem stays on those 4 cylinders. Any link to pin out the wire harness for the coils to the PCM
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I recently bought a 2000 jetta vr6 MK4 and since i have had it its had a misfire problem. So its saying that its misfiring in "cylinder 1" and sometimes when I clear the code it will stay off for the whole day. I did everything I could think of. I replaced all the spark plugs. I replaces the plug wires. Then i bought I new coilpack. and its still misfiring.
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I have a 2000 accent. Automatic tranny with 167000 miles. My current problem is the car is misfiring upon acceleration and engine revving. I have to accelerate very slowly to minimize this but i once the engine revs up enough I can give it more gas and it will rev normally with plenty of power. I have had to unplug the maf to keep it driveable. Ive never had a car stay running after disconnecting the maf so this is strange to me. My accent barely stays running with the maf connected. I just got the car from my dad and he had it fixed and it ran good for awhile with the maf connected so I don't think it is the maf. But the same problem came about and we had to disconnect the maf again. And he cant remember or is not sure what was exactly fixed on the car. I've read up about the purge control valve and havent had a chance to check it out but some of the symptoms fit.
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Alright I drive a 05 1.8t with 68k original miles.. nder a full load my car bogs and hesitates. also my turbo will stop spooling and my boost gauge will go from 10 pounds to about 4 and i will have to let go of the gas and push down again for my turbo to spool.. What this could be I can't figure it out..
Here is my car.....
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My 9-2 is misfiring on cylinders 2 and 4. At first we suspected a timing issue but that doesn't appear to be the case. My mechanic is looking at it but can't seem to locate the problem... so far:
- replaced old spark plugs
- checked the coils (moved them to see if the misfiring followed the coils--it did not)
- checked the timing belt (all good)
- compression is good
- fuel coming in is rich
He's dropping the exhaust today to check things from that end... A faulty mass airflow sensor wouldn't effect specific cylinders would it? and we'd see a degradation in the fuel richness right?
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According to the OBDII, I have a misfire on #3 & #4 cylinders. Im getting codes PO300, PO303, PO304 and PO171.
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I have a 2005 Toyota Avalon Limited with 106k miles. Check engine light detected Cylinder misfire in cylinders 3 and 4 at 99K even though I didn't feel the car driving any differently. At the time I was planning to drive the vehicle across the country and so maybe I freaked out, but a friend and I replaced all the spark plugs and coils at the same time (I knew the back 3 were a real pain).
Then at around 104K miles (after letting car sit for 8 weeks) I noticed my car was jumping a bit while idling at lights and the RPMs would dip about 50-100. It felt like I was running out of gas even though the tank was full. For the last 2k miles the idle problem has gotten slightly worse and I think I can even detect a misfire while driving in hilly terrain (although this could just be the oft complained about jerking transmission issues that plague the Avalon). There is NO check engine light illuminated and no codes.
what may be causing my car's idle to dip? It can't be the new plugs and coils already can it? How can I tell if there is a leak somewhere or if the fuel injectors are dirty?
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A couple of months ago I replaced my coils because of misfires. Just yesterday I satarted getting the running in 3 cylinders feeling. So I was woundering why they went out so fast? (Coils were from my brothers 20th gti)
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2001 VR6 GTI....
Already done:
Replaced the coil pack and plugs
Measured resistance of plug wires (all at about 6K Ohm)
Replaced front O2 sensor
Replaced purge solenoid valve
Replaced coolant temp sensor
Replaced fuel filter
Replaced fuel pressure regulator
Replaced MAF sensor
Cleaned the throttle body
Cleaned the throttle position sensor
Ran a tank of seafoam treatment (injectors were new 6 mos ago.)
Checked running voltage of battery
It was smoking and stinking bad with a rich mixture. It improved with the MAF change but still runs like a farm tractor. Now it idles on 3 or 4 cylinders, runs rough through 3000 RPM then runs cleaner at above 3000 RPM, but only at light throttle. CEL is either on or flashing when driving.
Don't know what to do next - nice car not fun to drive like this. What this could be and how to test it?
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I am having a recurring problem, My engine keeps misfiring. I have replaced the spark plugs, ignition coils and pcv valve with all new parts and and fixed it for a little bit but now my car is misfiring again, and Im hoping its not the head so need to narrow down what the problem is...
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So leading up to today ive had some bucking under load which felt like misfiring to me. I borrowed my friends VCDS cable, checked MAF, checked o2 sensors, checked cat. They are all good. This problem is constant but i did get a misfire code once (random, cyl 1, 2, and 3). I cleared the code and they never came back.
Today as im driving home from work, the bucking problem was much worse. Then the CEL came on. I just checked the code, and it was system too lean. I cleared the code and now the car will not start. It cranks, shows rpm on VCDS and sputters but doesnt even come close to starting.
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1995.5 Jetta VR6
Misfire cylinder 1 and random misfiring
P300 P301 Vagged it and can't figure it out
Changed the plugs, wires, and coil pack Used and old timing light and getting spark in all wires so can't be the coil pack
Fuel injector, O2 sensor, any other things?
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So my 2008 accent is my daily driver. I'm nearing the 300,000 mile mark but the last 100,000 miles have been plagued with random multiple misfires. I have changed the cables, crankshaft sensor, plugs, and I've been through numerous costly coils (I keep 4 with me). All listed parts were most recently changed at the same time. Why do I misfire on nearly every commute and get stuck operating on 3 cylinders?
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97 F150 4x4 XLT 5.4L... I had two cylinders misfiring, removed COP, injectors and plugs. Reinstalled all parts and reconnected all sensors. Now I am not getting fuel to the injectors. Double checked for disconnected wires and hoses, checked all fuses and relays, also the inertia switch. Fuel pump does not hum when key turned on. Tried hitting bottom of gas tank. My question is, before I pull the tank again, is there something under the hood I may be missing. It does get quite crowded at the rear of the motor.
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I just bought a 05 1.8T Jetta 116,000miles. and need diagnosing it. It misses all the time. Has new plugs I tried two other sets of coils (from my 2.0 a4 and my dads passat) and it made no difference. The SAI was taken out but nothing is blocked off. Also the coil pack wiring harness has cracks on the big brown wire where it goes down along the block. I'm getting these codes on my vag-com.
16687 cylinder 3 misfire
16686 cylinder 2 misfire
16688 cylinder 4 misfire
17766 cylinder 2 open ignition circuit
17763 cylinder 1 open ignition circuit
17769 cylinder 3 open ignition circuit
17772 cylinder 4 open ignition circuit
So am I correct in thinking that it's from the cracked harness? An not a vac leak?
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