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p0235
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  1. Alfa 147, 156 & GT
    Hi all, pitiful weekend. My '04 156 2.4 jtdm 20v had a turbo whistle since 1 week and a half and I got an appointment at the local Alfa dealer on this morning. Unfortunately, during the weekend, on the highway, sudden small knock, engine warning light, small black smoke and absolutely no power...
  2. Alfa 159, Brera & Spider
    Hello All, I've got the following error code on my Alfa 159 Ti 2.4 JTDM today - tried clearing it but it reappears straight away. P0235 TURBOCHARGER BOOST SENSOR A CIRCUIT Has anyone got experience of this error code and do we have any suggested troubleshooting steps? I have MES which I can...
  3. Alfa 147, 156 & GT
    I've spent hours reading up on the causes of the P0235 Boost Pressure Sensor MCSF error code. I've also worked through pretty much all of the suggestions, without finding anything significant. So - for the sake of my GT JTD - and my personal sanity - here's my plea for help ! :-) I get an...
  4. Alfa 147, 156 & GT
    Posted a couple of weeks ago about a turbo that had gone in wife's car. Sourced a turbo, fitted and though all ok, but alas no. Had ongoing fault with Egr also but now fitted new Egr to rule this out. But when accelerating hard lots of black smoke and low on power, throwing p0235 code up. I...
  5. Alfa 147, 156 & GT
    Ok guys at my wits end a bit here so any ideas much appreciated, I've had to have a recon turbo for my 147 jtd 8v due to the old one failing. The unit has a 12 month warranty so not worried about that however I'm still getting a boost fault error but not all the time. Is it possible the map...
  6. Alfa 147, 156 & GT
    I was having an occasional P0238 code on my 1.9 JTD 16v which is over boost, looked at the usual suspects and had leaks on the vacuum pipes to the VNT controller and they went away for a while, now I'm having problems with P0235 fault codes, usually popping up at low rpm (2000-2500rpm) and high...
  7. Engines (TS, JTS, JTD & V6)
    Hi, recently I have been getting P0069 and P0235 together. It only seems to happen when the engine is warmed up and I'm sat idling either at a long traffic light or pulled up. The car drives fine and the power seems the same. I have also had a P0101 which put the car into safe mode when...
  8. Alfa 147, 156 & GT
    Hi everyone, I wonder if any gurus out there could help? On turning on the engine on my 156 JTD I get an immediate MCSF warning, the code is P0235. The engine is flat and will not even go beyond 3,200 rpm. I have read and tried the solutions elsewhere on the AO threads , as follows all with no...
  9. Alfa 147, 156 & GT
    Hi all, So got this error after I took the EGR off for a clean - this was not my virgin attempt at cleaning the EGR - done many times. As a bit of background: Car is 2006 (totally standard - no blanking of EGR/no restrictor plate and no remap or tuning box) Inlet manifold was changed last...
  10. Alfa 147, 156 & GT
    Morning All, I have got my free copy of Multiecuscan and lead now and plugs it all in, and I had the above error that wasn't shown on the generic software I had. From looking online people have suggest MAP sensor or stuck open EGR valve. The EGR valve is new, but also blanked off. The MAP...
  11. Alfa 159, Brera & Spider
    Hi Can anyone suggest what may be causing these two code to be thrown up after starting the car. Thanks
  12. Alfa 147, 156 & GT
    Hi Guys, Ive had issue with a loss of power when accelerating hard, my engine managment light comes on and then off when i release the accelerator. I have plugged in my Fiatecu scan and it says : P0235 - Boost Pressure Boost pressure sensor A circuit Malfunction. can anyone help, what is...
  13. Alfa 147, 156 & GT
    hi all i've had the above MCSF appear twice this week both times when accelerating in 4th gear which then causes the car to drop into limp mode momentarily the explanation given by MultiEcuScan is as follows Boost Pressure sensor A circuit malfunction The reason for this fault is that ECU has...
  14. Alfa 147, 156 & GT
    156 selespeed 2.0ts - p1762 error code Hello, Last time when I was here I got great help and now I am in trouble again :) For last 2 days, rarely the selespeed warning light comes and goes and today I read error codes from fiatecuscan (first time using fiatecuscan and rarebear's cables...
  15. Alfa 147, 156 & GT
    Hello one and all.... I like many many others had the engine management light come on, after plugging in the diagnostic computer the code P0235 - Boost Pressure was revealed. I had a look around on this forum for some help and found that the concensus of opinion suggested was that the problem...
  16. Engines (TS, JTS, JTD & V6)
    Hi Just wanted to add some of my experience with these fault codes @ 2750rpm Had a fault P0236 kept coming up. > over boosting. 1. P0236 Checked for fault > no vacuum at VNT actuator or solenoid/ fault fix was vacuum pipes had melted > replaced pipes. Then another fault code reared its ugly...
  17. Alfa 147, 156 & GT
    Firstly used the FIATECUSCAN software on the weekend and bloody loved it! Managed to reset the airbag light after fiddling with the connector under the drivers seat. This was my forth fix of the weekend after fixing the micro swtich on the key so I have remote cental locking again, replaced a...
  18. Alfa 147, 156 & GT
    So have had the car (2001 2.4 JTD) for 9 months with no problems, but hadn't really taken it for any lengthy run. 60 miles at the most. This Christmas had a 160 mile journey to do up to Chester and all OK. Tank was 3/4 full, which I recconned would get me there and back. Journey there, no...
  19. Alfa 147, 156 & GT
    Following on from my MCSF thread I've cleared out the existing codes, and now I only get this one P0235 Stored Turbo/Super Charger Boost Sensor A Circuit I have no problem with performance (see my Porsche beating thread), but the MCSF comes up now and again because of this failure, since I...
  20. Alfa 147, 156 & GT
    Hello, my name is Goran and i am from Montenegro. I have Alfa 156 2.4JTD 100kw 1999. i have this error code and i need information how can i solve this problem P0235 Turbocharger Boost Sensor A Circuit Malfunction When i drive my alfa and rev come over 3500rpm in third gear red lamplet with...
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