This is my 97 Audi A4 2.8 Quattro 12v. I replaced the spark plugs about 4-5 months ago and everything was fine. My car started acting weird about 2 weeks ago…
This is my 97 Audi A4 2.8 Quattro 12v. I replaced the spark plugs about 4-5 months ago and everything was fine. My car started acting weird about 2 weeks ago…
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I know on these cars that if the pcv valve and hoses aren’t connected or
broken that it will cause misfires. Lots of time people change all kinds of
stuff like plugs, wires etc and all it was was the pcv valve diaphram etc.
I’ve had the exact same problems with my 97 audi a4 2.8. There is a list of
fixes for the misfire problem that is typical with this 12v motor. I agree
with Dalton. It looks like a missfire by the error codes and the noise. 1st
is vacuum hoses, 2nd is PCV hoses, 3rd is battery, 4th is wires, plugs,
coils, 5th is fuel filter (MADE A HUGE DIFFERENCE ON MINE) 6th is
injectors, 7th is timing, and 8th is O2 sensors detecting a leak or
failing. Both front O2 sensors can go bad after failed fuel injectors run
the fuel too rich. Now that you’ve fixed them, it might be too late to save
your 02s
might have lost compression in one of the cylinders
When u replaced the coils did u check the wiring
Google my post
bad or wrong O2 sensors or vac leak at t body or SAS hosing along back of
the engine…that convoluted tubing black hosing about 1′ dia…
If it takes awhile to get up to speed and isn’t firing correctly it has to
be the cars timing. Sounds like the timing is off slightly. Adjust the
timing belt/chain
I have the same problem but different car.
Lol you sound like Walter Jr. From ‘Breaking Bad.’
Sounds kind of like mine.
egr valve or O2 sensor
my beetle misfires rather badly as well causing it to occasionally sound
like a subaru. the wires you have may be in the wrong place as well
Did you check compression
audi sucks a technical desease…sell it!
Car back to running alright, still misfire in #4, turns out the coil pack I
ordered was bad, I just put the old one back on after making this and she
was running fine for a little bit. Now my problem is that at a cold start
she drives fine and after about 10-15 minutes of driving it just had no
more pep and even sounds like an injector is popping out. Does the bog down
thing when I go full throttle.
Whats a coil pack?
*plus check for any air leaks on your exhaust system…usually flex pipes
go bad…
Could be bad fuel injectors or weak fuel pump.
move your amp wire you can cause a fire
still heasatint, egr valve hard fix? i do have 2 o2 sensors in bank 1 and 2
that are bad
Yeah, I dunno i bought the 98 Audi and so far for the past month or 2 its
been great been driving it lots did mods too it and well so far enjoy it
quite a bit. But am selling it and thinking about going back to my last fav
car.. 02 325ci miss my BMW. Thanks for the info tho man, But yeah if i were
to buy another Audi it would probably have to be an 06 and up and probably
an S4 for sure.
buy one great car,s i got audi a4 1998 model pukka=cool motor build to last
1:11 what is that red wire in your door jam
Change the spark plugs, bosch aren’t great for European cars. Get ngk plugs
they are expensive but worth it.
U seem to be expert in it,can u help? My audi a62002 giving white smoke
through engine ,i m in saudi arabia and it will cost me alot if i change
engine here.so what should i do
try terraclean,it cleans everything
The only time my 1999.5 A4 2.8 Quattro behaved like this… it was the
throttle body that was sticking. It needed a good cleaning so that it would
operate properly. Before the cleaning the car was stalling and stuttering
on acceleration… after cleaning no problems!
cats clogged maybe
the neighbors must luv that exhaust note
replace the ignition wires, not the spark plugs
put original intake back on, that fixed my problem, reset computer issues,
and that will take car out of “safemode” worked for me
I don’t use single prong plugs anymore. I only use multi (2 or more) prong
platinums. They have a longer service life too. Win Win
Audi a4 some time you need to put Fuel injection cleaner
its the output stage module on top of breather