Vehicle & Technical > Discovery
MY V8 RUNNING RUFF plus a wierd air flow problem???
skip:
That's just how my disco runs all the time on petrol, yet it's not too bad on gas.
both sytems use the lamda so I can only guess it's the air flow meters.
I'll be watching with interest to see how you get on.
Thrasher:
The Rover ECU on that engine brings up a check engine if a sensor is out of range. There is no "limp mode", it just substitutes for a known good map.
remmy7:
Hi there,
I am not the most the most experienced V8 owner on this forum but I have had to replace around 4 MAF meters. I run a 4.0 V8 and have found that whilst it will run with the MAF disconnected allowing the Lambda sensors to do all the work, it will run very rough and perhaps stall if I do anything with the Air flow or MAF whilst its running. It may sound silly but try running it with or without the air box sealed but switch of between attempts, it could just be that the ECU is getting confused. I may be wrong but could it be if the MAF is goosed then the ECU isnt computing the airflow quick enough from the data from the Lambda sensors.
To be honest I am only guessing as I am starting to believe that a witch docter would be better placed to get my V8 running smoothly.
Regards Remmy7
solihull-mick:
Are you sure the figures you have are right? cos if your engine is running with 10.5 psi compression your doing well, 100psi is ok but a tip top engine should be more the 130 to 150 psi mark, do you mean bar?
And dont get confused with the 9.35:1 thats the compression ratio not what you get from the plug hole with a gauge, :)
disco-v8:
--- Quote from: "solihull-mick" ---Are you sure the figures you have are right? cos if your engine is running with 10.5 psi compression your doing well, 100psi is ok but a tip top engine should be more the 130 to 150 psi mark, do you mean bar?
And dont get confused with the 9.35:1 thats the compression ratio not what you get from the plug hole with a gauge, :)
--- End quote ---
nice one there mick, made my self look abit a an arse then :lol: yep i ment bar
and you no what i mean by the 9.35 ratio, when you do a compression test it should come up at 9.35BAR as it usued to do before i reconned the engine
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version