Ford Focus ST Forum banner

Discussions Showcase Albums Media Media Comments Tags Marketplace

1-20 of 63 Results
  1. Mk2 Engine, Exhaust and Induction
    Greetings, My ST seems to have been a bit temperamental lately, so I'm going to list both issues that I'm facing here. First issue: I have a check engine light illuminated so I plugged my scan tool into the OBD-2 port on multiple occasions, and got the following DTC's: These five come up...
  2. Mk2 Turbo & Intercooler
    seem to have a boost issue with my st seems to boost fine the suddenly goes into limp mode bringing up a code p0234 and maf p0101 ive already changed teh MAF, MAP sensors running a Collins actuator after running Forscan as well noticed its making about 33psi boost then cuts all boost and cant...
  3. Mk3 Diesel Engine, Exhaust and Induction
    Hi guys, Just recently bought a 2015 Focus ST MK3.5. She’s a 2L diesel car. When I was driving it, the engine service notification came on the dash and the car lost all boost. When I turned it off and on again, the boost came back and when I drove her hard, the boost never went above 3/4...
  4. Mk2 Engine, Exhaust and Induction
    Hi Guys, just today I’ve been having an issue where my car isn’t boosting or it is boosting one minute then not the next then 10 minutes later it will boost again! Also the turbo Boost gauge needle likes to hunting and flick up and down randomly. Correct me if I’m wrong but I’m thinking boost...
  5. Mk2 Turbo & Intercooler
    Hi. I am new to this forum and have recently bought a 09 facelift st. I have been having some issues, some rectified but a problem persists i could do with some advice on. This may be a bit of a long winded post but i want to try and attach as much detail as possible on this, so apologies but...
  6. Mk2 Turbo & Intercooler
    I am having issue with boost on my standard ST. I am finding this scenario now and again, getting more often now: I put my foot down and the car pulls but the boost gauge sticks at 1/4, if I let off the accelerator and then kick it back down boost climbs as normal to between 1/2 and 3/4 (I...
  7. Mk2 Engine, Exhaust and Induction
    Hi guys, long time lurker and fully paid up member! Been having a search for an answer to my issue but cant find anything that will help so apologies if this all sounds familiar. Bought my 08 ST2 last year, been an absolute joy to drive! I installed bluefin stage 1 around 10 months ago and on...
  8. Mk2 Turbo & Intercooler
    Hey guys! I've been lurking on the forums for a good while and I've really enjoyed the wealth of knowledge and it's finally time for me to make a post of my own haha. Yesterday I was feeling a bit adventurous and decided to block off the vacuum hose to the inlet plenum from the recirc valve to...
  9. Mk2 Engine, Exhaust and Induction
    Hi guys.... I've had this sense of hesitation on my MK2 ST so I decided to take it out on a FORSCAN data log and see what was going on. It was present before my engine rebuild and my group A + cold air feed was fitted, so I do not have any reason to believe it's the Group A filter. I realise...
  10. Mk2 Miscellaneous
    I was trying to install a turbosmart recirc valve but gave up after 1 bolt, but when I went to reinstall the bolt I'd unscrewed I saw this vacuum pipe dangling down to the side of the boost solenoid. Pulled it up through the top of the engine bay and it looks like it go in to the cabin. I'm...
  11. Mk2 Turbo & Intercooler
    Hello. So i`m having this strange boost pressure problem. The car is a `09 and only modifications are bsr remap and turbosmat recirc. I have the very common problem with 1/4 or 0.3 bar boost pressure to the dial. Sometimes when flooring it at 5th or 6th gear the pressure rises almost to normal...
  12. Mk2 Engine, Exhaust and Induction
    Afternoon Peeps, The other week i finally got around to changing my old standard boost hoses for the Pro-Hose set including a symposer delete (which was a b*****d of a job!) (DSCi map, Stage 1 I/C & CAIS already fitted for a few months) Since changing the hoses the boosting has developed a...
  13. Mk2 Engine, Exhaust and Induction
    Finally got closure on a long term issue I've had with my car... and this time i actually mean it :woohoo: Jerking, slowness in acceleration and a bogged down feeling. Car felt like a 1.6 at times. Sometimes i'd get a full on buck of the car too. After cleaning MAP sensor again the other day...
  14. Mk2 Turbo & Intercooler
    So recently I've been having an intermittent issue with the ST loosing the turbo dump chatter and only boosting half way. The spool also sounds higher pitched as well. It seems to come and go as it pleases so I'm at a loss really, any ideas anyone? FYI it has a turbosmart compact recirc valve.
  15. Mk2 Turbo & Intercooler
    Hi all, I've got one of the MAC boost solenoids but it came with bare wires and no wiring connector, so I purchased one - had a good look around but can't find any info, was hoping that someone here might know which way round the wires should be set up? Photo:
  16. Mk2 Turbo & Intercooler
    Hi all, Hoping that you good people can help out with my latest ST problem please. I have a 2006 ST2, completely standard. I have sudden different/wrong behaviour of my turbo. Up to now, it has only boosted up to a certain point...maybe 3/4 on the dial, which I assumed was normal being...
  17. Mk2 Engine, Exhaust and Induction
    So, I drove to work this afternoon and the car felt fine. As i pulled into the car park and started to reverse in to a space I opened the window and could smell burning oil! Didnt really think much of it as it could have been another car on the main road. Anyway, I was driving home 20 minutes...
  18. Mk2 Turbo & Intercooler
    Hi guys, wondering if anybody has experienced or could shed some light on my issue, I bought the car a few months back and since I have owned it the car hasnt performed properly, basically it doesnt boost, the car has been plugged in and is putting up a turbo overboost fault, the boost control...
  19. Mk2 Turbo & Intercooler
    Hi guys, I've recently purchased a Facelift 08 ST for my Girlfriend. Having had a pre facelift a few years ago that was a bit modded I have history with them, but I am a bit stumped with this one... Now, its was modified once upon a time but the previous owner returned it largely to stock, bar...
  20. Mk2 Engine, Exhaust and Induction
    Hey guys I've got a focus st mk2 apart from removing the symposer when I first bought it I've made no other modifications and it has no map. In the past few weeks it's started boosting well over 3 quarters on the gauge and then cuts out as if it's doing some over boost protection thing. Any way...
1-20 of 63 Results
Top