GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: dellenty69 on 25 January 2011, 12:44
-
last few days i have had a slight issue with my car when boosting hard, as soon as i get around 15psi it will judder like mad, boosting up to that its fine.
so...
checked for codes.. nothing
replaced my n75 went from a H to an E (E is the new F)...nothing
maf isnt very old, 6months or so, but i removed it and cleaned it....nothing
coil packs are fine, and so are spark plugs. as far as i can see anyway.
tank is full of high octain fuel now, (last week i put normal stuff in as garage diddnt have any) i have run redex fuel cleaner, and a octane booster...week on and nothing. i have used 95ron fuel before with no problems.
so i have run out of ideas. all boost hoses are good, pcv all good.
give me some ideas people...
thanks in advance
james
-
Checked for fuelling issues? blocked fliters and the rest of it?
-
overboost ?
-
no i havent checked the fuel filter, but my plugs are the correct colour, and im not getting any fuel bank lean or anything, and its only on hard acceleration.
could be worth replacing the fuel filter, where abouts is it on these?
no not over boost, mine is stage one mapped, so 19psi is peak and it holds 18psi, then tails off to 15. plus its just had a new n75 valve.
-
Well on my AUQ i THINK it is on the left hand side of engine bay next to washer bottle, but i havn't ever really looked, i know my car hesitated when it was old, and that it was fine after they changed it in a service, so never having had to change it myself i don't know where it is, but like i say it fixed similar symptons on my 1.8T. :shocked:
-
Fuel filter is under the car towards the rear. You're on about the charcoal canister which is next to your washer bottle :smiley:
Diesels have the fuel filter in the engine bay :smug:
-
Fuel filter is under the car towards the rear. You're on about the charcoal canister which is next to your washer bottle :smiley:
Diesels have the fuel filter in the engine bay :smug:
hey rhyso, can you tell me what this does..... dont laugh either!!!! :embarassed:
-
Fuel filter is under the car towards the rear. You're on about the charcoal canister which is next to your washer bottle :smiley:
Diesels have the fuel filter in the engine bay :smug:
hey rhyso, can you tell me what this does..... dont laugh either!!!! :embarassed:
Not 100% tbh - think its something to do with the emissions control. I stand to be corrected. Petrol engines are not my forte
-
for once, you're right :grin:
-
for once, you're right :grin:
First time for everything huh :tongue:
-
just changed fuel filter old one was clean as a whistle, and the new one hasn't done feck all. lol
new ideas?
-
oh how exciting, i finally got the engine management light come on!
2 codes
16684/P0300/000768 - Random/Multiple Cylinder Misfire Detected
Possible Causes
Air Intake System leaking
Fuel Supply faulty
Injector(s) faulty
Ignition Cable(s) and/or Spark Plug(s) faulty
Ignition Coil(s) faulty
Exhaust Gas Recirculation (EGR) Valve (N18) stuck/open
Camshaft Position Sensor (G40) faulty
Possible Solutions
Check Misfire Recognition
Check Air Intake System
Check Fuel Supply
Check Injector(s) and Injector Sealing
Check Ignition Cable(s) and Spark Plug(s)
Check Ignition Coil(s)
Check Exhaust Gas Recirculation (EGR) Valve (N18)
Check Camshaft Position Sensor (G40)
Special Notes
This DTC indicates that one or multiple cylinders are misfiring, but the ECU fails to identify the cylinder.
and
16685/P0301/000769 - Cylinder 1 Misfire Detected
Possible Causes
Ignition system
Fuel injectors
Fuel pressure
Running out of fuel
EVAP canister purge valve
Evaporative emission system
Low compression
Base engine problems
Controle Module damaged
Special Notes
This feature search for engine misfire in a specific cylinder. Most of the time the cause for a misfire is a lack of combustion in a cylinder due to absence of spark, poor fuel metering, or poor compression.
time to hunting.... :(
-
Fuel filter is under the car towards the rear. You're on about the charcoal canister which is next to your washer bottle :smiley:
Diesels have the fuel filter in the engine bay :smug:
hey rhyso, can you tell me what this does..... dont laugh either!!!! :embarassed:
Not 100% tbh - think its something to do with the emissions control. I stand to be corrected. Petrol engines are not my forte
They're used for impromptu barbecues
-
sounds like coilpack on cylinder 1 has broken down (furthest one to the left as you look at the engine from the front of the car)
try swapping the coils around between cylinders 1 and 2, and see if the fault code jumps to the next cylinder aswell.
-
well iv just swapped them over cy1 with cy2 and now it wont throw a fault code up no matter how hard i try.
just have keep driving till it does.