Soroz New Member 21 Member For: 11y 5m 30d Posted 12/07/14 09:44 AM Share Posted 12/07/14 09:44 AM Hey guys,Been having some dramas recently when my car comes onto boost. I've got my foot planted but the car still surges back and forth (not extreme but I can feel it). Almost like boost is coming on and going off, on and off, on and off etc. It happens all the way through the range. Also when I am on the highway in 6th gear, 2k RPM and plant it it coughs and surges really bad then goes back to the boost surging on and off again. The car is an 05 mk2 6 speed manual. All stock except for minor intake mods and earls oil feed line. Going to go see someone about it on wednesday but thought I might find help on here first.At first I thought it might be dirty fuel as I have had that drama before but when it started coughing and surging in 6th at 2k RPM I thought it might be something else. Cheers guys! Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 7m 27d Gender: Male Location: @ my laptop Posted 12/07/14 09:55 AM Share Posted 12/07/14 09:55 AM your minor intake mods with the stock tune may be your issue, but could be lots of things, anybody giving an answer is only guessing 1 Link to comment Share on other sites More sharing options...
Soroz New Member 21 Member For: 11y 5m 30d Posted 12/07/14 10:00 AM Author Share Posted 12/07/14 10:00 AM By intake mods I am talking about the 2nd CAI and k&N filter. Nothing that should affect it at all. Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 7m 27d Gender: Male Location: @ my laptop Posted 12/07/14 10:26 AM Share Posted 12/07/14 10:26 AM well you need to get it diagnosed properly Link to comment Share on other sites More sharing options...
Soroz New Member 21 Member For: 11y 5m 30d Posted 12/07/14 10:30 AM Author Share Posted 12/07/14 10:30 AM Yeah I'm seeing someone on Wednesday about it. Guess I can use the Hayabusa for a few days =P Link to comment Share on other sites More sharing options...
Fergos Member 53 Member For: 10y 7m 8d Gender: Male Posted 13/07/14 01:45 AM Share Posted 13/07/14 01:45 AM Your coils are on way out same thing happind to my car changed the plugs it went good for about 3 days then back to surging again so I bought some coils and has not done it since I also got another set of plugs and gaped them to .9 with feller gauges do this to help spark as if there apart any further the coils can burn out I was told so I did it and no problems since easy job to do yourself I would recamend trying this first also at same time do the boost solanoid trick witch is to spray wd40 down the line to the turbo with least 1/4 of a can this helps clean actuator valve and spring might be sticky that's if your willing to give it a go yourself and save a bit of coin rather then have to leave car at shop for a day or two both are easy jobs and can be done in about 3 hours tops if your not rushing . Hope this helps Link to comment Share on other sites More sharing options...
Soroz New Member 21 Member For: 11y 5m 30d Posted 13/07/14 02:01 AM Author Share Posted 13/07/14 02:01 AM Cheers fergos,Ill have a look into the coils and see how that goes. Ive done the boost solenoid thing twice in two months, both times I didn't notice a difference (yes the pipes went on in the correct order) 1 Link to comment Share on other sites More sharing options...
Soroz New Member 21 Member For: 11y 5m 30d Posted 16/07/14 06:50 AM Author Share Posted 16/07/14 06:50 AM Bought new NKG plugs from autobarn for $5 each. Ford quoted me $70 each coil but I got a friend of a friend who works for them to get them for $28 each. Just fitted them and went for a spin. Its now boosting nice and smoothly and a roll on from 6th gear is smooth. Looks like its fixed for now, cheers for the help! Link to comment Share on other sites More sharing options...
Fergos Member 53 Member For: 10y 7m 8d Gender: Male Posted 16/07/14 08:47 AM Share Posted 16/07/14 08:47 AM Sweet as glad I could help I no it would be a hassle but now I would go and buy some descent plugs for it I found the Cheeper ones are good but I would recommend getting the expensive ones they will last longer and get a better spark I think theywerecalled (iridium plugs) don't quote me one it : / but they have 4 little prongs on the end not the cheep ones that have 1 the ones you have will still do the job fine. I just like getting the best for my car but in saying that I always seem to be spending more to. Link to comment Share on other sites More sharing options...
Soroz New Member 21 Member For: 11y 5m 30d Posted 16/07/14 02:38 PM Author Share Posted 16/07/14 02:38 PM I had the option of getting the better plugs but im only running standard boost and didnt feel the need to fork out $20 each plug. When I finally get some $$$ and start modding ill get decent plugs Link to comment Share on other sites More sharing options...
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