But surely if there was anything faulty it would trip the engine management light on the dash???
Have been having a think and it could be a faulty coolant temperature switch as if this is faulty it will trick the ecu into putting more fuel in for a cold engine, again comes back to the thing that it could be a million things wrong!!
First thing i am going to try this weekend is to clean up the AFM's and see if it helps.
Running rich.
Only if its broken, if its still giving a signal or its presence is not checked then theres no reason for it to throw an error.323ian wrote:But surely if there was anything faulty it would trip the engine management light on the dash???
Have been having a think and it could be a faulty coolant temperature switch as if this is faulty it will trick the ecu into putting more fuel in for a cold engine, again comes back to the thing that it could be a million things wrong!!
First thing i am going to try this weekend is to clean up the AFM's and see if it helps.
If you check the output voltage of the MAF before and after cleaning you should be able to see if the cleaning has been effective.
It may sound strange but put a couple of jump leads between the negative battery terminal, one on the block by the alternator, another somewhere on the head. You'd be amazed at what bad grounds can do to the discrete signals from the sensors. You've seen what a bad earth does on a rear light, imagine what that does to an ECU...
what bob said in nutshell, basically if a o2 sensor/ wideband sensor is on it way out it will slowly start to fail often starts by putting the fuelling out usually rich you usually can tell because it starts to use mush more fuel and then it will fail and then throw the code, but yes it can also be a million and one thinks easest way to find out will be consult or the like or process of elemination which may or may not take longer.
The only way you will ever know is to stick a lambda in the zorst and take it out.
If it was my car i would check all the fact first. ie plug into the ecu too see if it throws are fault codes at ya.
The afrs are not really a moving target. It should be simply rich enough to cool the combustion process.
Are you sure the ign system is in tip top condition ?
Are you running the correct fuel for the chip ?
You could try and pull the plugs to see what they look like.
Scott
If it was my car i would check all the fact first. ie plug into the ecu too see if it throws are fault codes at ya.
The afrs are not really a moving target. It should be simply rich enough to cool the combustion process.
Are you sure the ign system is in tip top condition ?
Are you running the correct fuel for the chip ?
You could try and pull the plugs to see what they look like.
Scott
"You think you have a limit, As soon you touch this limit, something happens to you; suddenly you can go a little bit further. With your mind power, your determination, your instinct and your experience as well, you can fly very high."
Cheers guys.
The plugs look fine.
I have bought an earthing kit to fit on over the weekend as i know that bad earths can cause all sorts of problems.
If i had a proper manual i could check the fault codes my self with a test lamp but i cant seem to find any info on how to do it anywhere.
I will get a few readings off my wideband and put them on here for reference but it is using LOTS of fuel!!
Thanks.
The plugs look fine.
I have bought an earthing kit to fit on over the weekend as i know that bad earths can cause all sorts of problems.
If i had a proper manual i could check the fault codes my self with a test lamp but i cant seem to find any info on how to do it anywhere.
I will get a few readings off my wideband and put them on here for reference but it is using LOTS of fuel!!
Thanks.