Jump to content
SAU Community

Recommended Posts

all he did was changed oil, oil filter and few minor things that dont contribute to motor, when you put your foot into it, it has power until about 3,000rpm then starts losing boost but picks up again and then cuts out again, its constant throughout the rev range

all he did was changed oil, oil filter and few minor things that dont contribute to motor, when you put your foot into it, it has power until about 3,000rpm then starts losing boost but picks up again and then cuts out again, its constant throughout the rev range

Could be any number of things from bad fuel, to coil packs to air flow meter to vacuum leak... Very hard to say based on the information you've provided. E-Mechanic isn't an easy occupation.

Did the mechanic do your fuel filter? Does the car seem like it's running rich at all, any black smoke coming out the exhaust when these surges occur? Does it idle nicely?

idles fine and only run 98oct fuel, no smoke at all and i cant remember if he did fuel filter, its the mrs car and the receipt is in her car. it doesnt seem to run rich whatsoever, what oil is best to run in the neo's?

Get that receipt, list everything done. Then we might actually be able to help.

RB oil filter changes are notorious for being a complete pain in the ass, a careless mechanic can easily damage a vacuum hose causing the motor to overboost and hit R&R.

ok heres what was done

-change oil and oil filter

-check brakes

-top up fluids

-check lights steering tyres suspension etc

-inspect underbody, hoses, belts etc

the oil that was put in is 10w-40 semi synthetic mobil formula

ok heres what was done

-change oil and oil filter

-check brakes

-top up fluids

-check lights steering tyres suspension etc

-inspect underbody, hoses, belts etc

the oil that was put in is 10w-40 semi synthetic mobil formula

This sounds like your issue. I bet he has played around with some hoses and not noticed has has pulled one off or he has replaced one and not put a clamp back on, etc etc. I would just go over all your hoses, and I mean all of them. Unfortunately it's not a fun job on a Neo confused.gif

As for oil, I personally always use full synthetic as well but it's not realllllly critical. Semi-synthetic will do the job.

This sounds like your issue. I bet he has played around with some hoses and not noticed has has pulled one off or he has replaced one and not put a clamp back on, etc etc. I would just go over all your hoses, and I mean all of them. Unfortunately it's not a fun job on a Neo confused.gif

As for oil, I personally always use full synthetic as well but it's not realllllly critical. Semi-synthetic will do the job.

ok will check it all out tomorrow thanks alot guys :)

  • 3 months later...

Did you find out what the issue was? I have a similar problem except mine surges between 4000 & 5000 RPM & then pulls fine from there to redline. It only happens when my foot is flat not at part throttle.

Did you find out what the issue was? I have a similar problem except mine surges between 4000 & 5000 RPM & then pulls fine from there to redline. It only happens when my foot is flat not at part throttle.

That sounds like RnR to me. Cold weather, possibly running a touch more boost and maxxing out your AFM.

I thought it might be R&R. It doesn't have a boost controller on it so should be running stock boost although the boost gauge shows about 0.7 bar.

I reset the ECU & also changed the BOV so it was re-circulating again & it seemed to almost fix the problem, now its just a slight hesitation at 4500rpm only sometimes, other times its fine.

The re-circulating pipe isn't 100% sealed so I will seal it all up & see if that fixes it.

unless the mechanic is a complete berk then he shouldnt of knocked any vacuum hoses off when changing the oil (at least)engine bay is large and oil filter easy to get to when compared to a 32 anyway

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Update 3: Hi all It's been a while. Quite a lot of things happened in the meantime, among other things the car is (almost) back together and ready to be started again. Things that I fixed or changed: Full turbo removal, fitting back the OEM turbo oil hardlines. Had to do quite a bit of research and parts shopping to get every last piece that I need and make it work with the GT2860 turbos, but it does work and is not hard to do. Proves that the previous owner(s) just did not want to. While I was there I set the preload for the wastegates to 0,9bar to hopefully make it easier for the tuner to hit the 370hp I need for the legal inspections that will follow later on. Boost can always go up if necessary. Fitted a AN10 line from the catch can to the intake hose to make the catchcan and hopefully the cam covers a slight vacuum to have less restrictive oil returns from the head and not have mud build up as harshly in the lines and catch can. Removed the entire front interior just shy of the dashboard itself to clean up some of the absolutely horrendous wiring, (hopefully) fix the bumpy tacho and put in LED bulbs while I was there. Also put in bulbs where there was none before, like the airbag one. I also used that chance to remove the LED rpm gauge on the steering column, which was also wired in absolute horror show fashion. Moved the 4in1 Prosport gauge from sitting in front of the OEM oil pressure gauge to the center console vents, I used a 3D printed vent piece to hold that gauge there. The HKB steering wheel boss was likely on incorrectly as I sometimes noticed the indicator reset being uneven for left vs. right. In the meantime also installed an airbag delete resistor, as one should. Installed Cube Speed premium short shifter. Feels pretty nice, hope it'll work great too when I actually get to drive. Also put on a fancy Dragon Ball shift knob, cause why not. My buddy was kind enough to weld the rust hole in the back, it was basically rusted through in the lowermost corner of the passenger side trunk area where the wheel arch, trunk panel and rear quarter all meet. Obviously there is still a lot of crustiness in various areas but as long as it's not rusted out I'll just treat and isolate the corrosion and pretend it's not there. Also had to put down a new ground wire for the rear subframe as the original one was BARELY there. Probably a bit controversial depending on who you ask about this... but I ended up just covering the crack in the side of the engine block, the one above the oil feed, with JB Weld. I used a generous amount and roughed up the whole area with a Dremel before, so I hope this will hold the coolant where it should be for the foreseeable future. Did a cam cover gasket job as the half moons were a bit leaky, and there too one could see the people who worked on this car before me were absolute tools. The same half moons were probably used like 3 times without even cleaning the old RTV off. Dremeled out the inside of the flange where the turbine housing mates onto the exhaust manifolds so the diameter matches, as the OEM exhaust manifolds are even narrower than the turbine housings as we all know. Even if this doesn't do much, I had them out anyways, so can't harm. Ideally one would port-match both the turbo and the manifold to the gasket size but I really didn't feel up to disassembling the turbine housings. Wrapped turbo outlet dumps in heat wrap band. Will do the frontpipe again as well as now the oil leak which promted me to tear apart half the engine in the first place is hopefully fixed. Fitted an ATI super damper to get rid of the worn old harmonic balancer. Surely one of the easiest and most worth to do mods. But torquing that ARP bolt to spec was a bitch without being able to lock the flywheel. Did some minor adjustments in the ECU tables to change some things I didn't like, like the launch control that was ALWAYS active. Treated rusty spots and surface corrosion on places I could get to and on many spots under the car, not pretty or ideal but good enough for now. Removed the N1 rear spats and the carbon surrounding for the tailpipe to put them back on with new adhesive as the old one was lifting in many spots, not pretty. Took out the passenger rear lamp housing... what do you know. Amateur work screwed me again here as they were glued in hard and removing it took a lot of force, so I broke one of the housing bolts off. And when removing the adhesive from the chassis the paint came right off too. Thankfully all the damaged area won't be visible later, but whoever did the very limited bodywork on this car needs to have their limbs chopped off piece by piece.   Quite a list if I do say so myself, but a lot of time was spent just discovering new shit that is wrong with the car and finding a solution or parts to fix it. My last problem that I now have the headache of dealing with is that the exhaust studs on the turbo outlets are M10x1.25 threaded, but the previous owner already put on regular M10 nuts so the threads are... weird. I only found this out the hard way. So now I will just try if I can in any way fit the front pipe regardless, if not I'll have to redo the studs with the turbos installed. Lesson learned for the future: Redo ALL studs you put your hands on, especially if they are old and the previous owners were inept maniacs. Thanks for reading if you did, will update when the engine runs again. Hope nothing breaks or leaks and I can do a test drive.
    • No those pads are DBA too  but they have colors too. I look at the and imo the green "street" are the best.
    • I’m not sure what happened I told them about sonic tunes free OTS tune and the next the I know .. I was booted..   To funny 
    • Yea - I mean I've seen my fuel pump which is decades old and uh, while I'm not saying this with real knowledge... but I sure get the ick at using anything in the fuel system that produced the state of that pump. Many years ago I went through multiple pumps (and strainers) before I dropped the tank to clean it out with extreme violence. I'm talking the car would do maybe 50km before coming to a halt, which resulted in me cleaning out the filter with some brake cleaner and going on my way. None of my stuff ever looked like what came out of your fuel tank. I don't think I'd be happy with it unless every single component was replaced (or at least checked/cleaned/confirmed to be clean here).
    • I'm not going to recommend an EBC pad. I don't like them. Just about anything else would suit me better. I've been using Intima pads for a while now.
×
×
  • Create New...