Sign In   Register
Introduction
Pinned Items
Recent Activities
  • Hi,

    Pscan unit arrived today and have done a quick live data scan. Been trying to turn data into line charts without success so figures only.

    I was hoping it would be the upstream O2 sensor as that would be a quick fix but it seems not to be the case.

    I started the feed with a cold start until temp guage was at normal - idle only.


    Upstream sensor started at 0.63v and fluctuated between 0.2v and 0.75v straight away.

    Downsteam sensor started at 0.47v and stayed at that for some time then started changing at 67c engine temp. Fluctuated between 0.11v to 0.9v.

    Fuelling correction - not sure what this is, meant to use fuel trims but it started at 100% and moved from 85% to 110%.

    Reported being in closed loop for entire test.

    Any suggestions on what to test next? Engine coolant temp sensor seems ok, MAP sensor?

    Iain.
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • TwistedPuppet created a new forum post in pscan.uk diagnostic tool forum
    Hi,

    Got the Pscan unit today and seems to be working with the install and quick test I did.

    Thank you for the fast despatch :)

    Iain.
    1. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • Ordered a Pscan scanner today.

    When it gets here, what do you reccomenf scaning for in live data?

    RPM, engine temp, upstream and downstream O2 volts? Don't know all you can do with this scanner.

    Iain.
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • TwistedPuppet replied to the topic Got an MGF in The T Bar
    Didn't hit a nerve :)

    I don't mind working on cars - you learn,save money and it's a man think to fix cars (less so these days it seems) along with anything that involves a shed.. Can be annoying trying to fix stuff within an MOT retest time frame though.

    Saying that......this is the most problematic car I have every had, I fix one thing and another thing go's. The car is at that age I guess, everything wearing out at about the same time. Does feel like a friday afternoon last off the production line car sometime.
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • Sorry, I ment co not o2. I have no emisions data at all as they stopped the test "Emisions not tested (Co far too high)"

    Going to need a better scanner.

    My thoughts are, not going into closed loop = bad upstream o2 sensor or maybe exhaust manifold leak.
    From the freeze frame data, I gather it is stuck in cold warm-up (like having the choke pulled out). Coolant temp sensor seems fine if reading 98. However all I know is what I have learnt from watching youtube videos on o2 sensors and open loop/closed loop in the last few days.

    I don't get the Single p0170 code without the either of other two codes that say lean or rich. It's saying i am adjusting the fuel too much but I'm not telling you if it's too much or too little because I'm a Ars***le.

    Thought the plugs would be worse as well.
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • TwistedPuppet thanked the user talkingcars in the forum post, MOT failure fun
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • TwistedPuppet replied to the topic Got an MGF in The T Bar
    I just want a working mg tf for Christmas - lol
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • TwistedPuppet replied to the topic Battery in MGF/TF Pitstop
    Good idea but I know I would lose the knob after a couple of months.
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • I replaced the spark plugs, air filter etc. about 6-8 weeks ago. Car is SORN so no milage.

    Old spark plugs.


    They seem fine to me. Not too black and sooty and not oily.

    I don't think it is actually running that rich.

    I think the MOT tester told me it was about 8% O2 out off the pipe.
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • Found a guide here for helicoiling a subframe bolt and ordered a kit :).

    new cat and o2 sensor where fitted by a garage in 2017 and 20,000 miles ago according to the history. Cat was £100 and sensor was £80 so probably not the best.

    I have a cheap scanner basic scanner that gives the p0170 fuel trim bank 1 fault but nothing else.

    Did a freeze frame reaading for when the mil light came on and got :-

    Fuel.sys1 OL_fault
    Load _PCT(%) - 5.5
    ETC(%) - 98
    SHORT FT1 - 0.0
    LONG FT1 - -3.1
    MAP - 64
    RPM - 933
    VSS - 5

    Also Emmisions test data from MOT, don't think anything is useful as test was stopped.



    Had some weird readings not long ago might be connected https://www.the-t-bar.com/forum/9-mgf-tf-pitstop/97693-check-engine-light-weird-readings
    1. View Reply
    2. View Thread →
    0
    0
    0
    0
    0
    0
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
There are no activities here yet
Unable to load tooltip content.
© 2021 The-T-Bar.com All Rights Reserved.