reb78 Posted March 1, 2015 Author Share Posted March 1, 2015 4250 in aTD5? I thought the power peak range was between 1500 and 2200, perhaps the engine rev limiter is about 4000rpm? I dont think I have ever had mine over 2500, mind you I have got the over size torque converter in mine Rev limiter is 4750. I don't rev it that high often and it will cut out at lower revs, just noticed it the first time when I booted it out of a junction and hit 4250. Quote Link to comment Share on other sites More sharing options...
reb78 Posted March 1, 2015 Author Share Posted March 1, 2015 Could it be that your wastegate is wound up to much and the boost is too high ? Incidentally I bought a VDO MAF after I killed one with a jet wash - and it worked really well. Perhaps, but I don't think so. Nanocom calculates boost, so it's difficult to know the actual figure, but I think they were pretty normal. Quote Link to comment Share on other sites More sharing options...
iomlt Posted March 5, 2015 Share Posted March 5, 2015 delaminated / delaminating intercooler hoses. Quote Link to comment Share on other sites More sharing options...
reb78 Posted March 5, 2015 Author Share Posted March 5, 2015 delaminated / delaminating intercooler hoses. Good shout, but already replaced them as part of trying to solve this. Didn't work :-( Quote Link to comment Share on other sites More sharing options...
RedLineMike Posted March 5, 2015 Share Posted March 5, 2015 nanocom should display the actual boost level you are reaching Quote Link to comment Share on other sites More sharing options...
V8 Freak Posted March 5, 2015 Share Posted March 5, 2015 Rich, I'm away next few weekends but if we can get together I'm happy for you to try my MAF / MAP sensors and see if they make a difference etc. Contact me in PM to arrange... Neil Quote Link to comment Share on other sites More sharing options...
reb78 Posted March 11, 2015 Author Share Posted March 11, 2015 Thanks Neil. I had bitten the bullet before you posted and ordered a new MAF - this has fixed it. Its weird because the old MAF was reading throughout the entire rev range. 66ish at idle and then peaking at 668 which, apparently is when a limiter kicks in and cuts the fuelling. Because it was giving a reading that wasnt far out from what was expected, i didnt jump in and replace it. The new MAF reads 56/57 at idle and on a few runs last night peaked at 643. So, it seems that the calibration of the old MAF was out as 66 is high looking at most folks figures for idle. I have had this problem with two MAFs now and all of them - including this current one - have been identical part numbers. Lets hope this is it solved! Quote Link to comment Share on other sites More sharing options...
Anderzander Posted March 11, 2015 Share Posted March 11, 2015 Good news - but peculiar ! Quote Link to comment Share on other sites More sharing options...
reb78 Posted March 11, 2015 Author Share Posted March 11, 2015 Good news - but peculiar ! Weird isn't it? I thought I had ruled it out by checking it's readings, but at a loss replaced it anyway! Quote Link to comment Share on other sites More sharing options...
Anderzander Posted March 11, 2015 Share Posted March 11, 2015 I figured it must be that when you said disconnecting it cured it - it was contradicted by the readings but, what was that thing Sherlock holmes said ? - when you have eliminated the impossible, whatever remains, however improbable, must be the truth Quote Link to comment Share on other sites More sharing options...
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