Astra MAP Sensor
Discussion
Hi,
About time I sorted this problem, well what I believe to be the problem.
Since a few days after I got the car (1.6L Petrol Astra SXI MK4) the EML has been on, which is getting on a few months now.
The problem is intermittent and although the EML is always on (Bar a few days where it seems to have turned itself off and ran fine for up to a whole day at a time) it isn't always occuring. When it is, the idling is erratic (Jumping from 300 - 1500 revs up and down) which sometimes drops too low and cuts out, and this happens when coming to a stop at a junction sometimes. When lightly touching the accelerator, the car jumps like i'm kangarooing it which is annoying.
Also, when the erratic idling is occuring you get quite a strong smell of fuel.
When I used an aftermarket cheap-ish diagnostics kit the error I was getting was the MAP sensor, can't remember the error code now. I changed the MAP sensor but to no avail. I believe the MAP reading should change in accordance with the TPS reading but it just stays at 10.0.
The wiring loom which contains the MAP sensor looks as though it has been partly cracked open before, could it be the wire from the MAP sensor causing this? If it has loose contact or whatever (I'm not a mechanic) could it sometimes give a reading hence the intermittent issue?
If so - is this something which could be done myself? Although I don't have much experience mechanically I'm not stupid but is it something which I should probably take to an auto electrician? What is the rough time it would take the trace that wire and repair it?
Thanks.
About time I sorted this problem, well what I believe to be the problem.
Since a few days after I got the car (1.6L Petrol Astra SXI MK4) the EML has been on, which is getting on a few months now.
The problem is intermittent and although the EML is always on (Bar a few days where it seems to have turned itself off and ran fine for up to a whole day at a time) it isn't always occuring. When it is, the idling is erratic (Jumping from 300 - 1500 revs up and down) which sometimes drops too low and cuts out, and this happens when coming to a stop at a junction sometimes. When lightly touching the accelerator, the car jumps like i'm kangarooing it which is annoying.
Also, when the erratic idling is occuring you get quite a strong smell of fuel.
When I used an aftermarket cheap-ish diagnostics kit the error I was getting was the MAP sensor, can't remember the error code now. I changed the MAP sensor but to no avail. I believe the MAP reading should change in accordance with the TPS reading but it just stays at 10.0.
The wiring loom which contains the MAP sensor looks as though it has been partly cracked open before, could it be the wire from the MAP sensor causing this? If it has loose contact or whatever (I'm not a mechanic) could it sometimes give a reading hence the intermittent issue?
If so - is this something which could be done myself? Although I don't have much experience mechanically I'm not stupid but is it something which I should probably take to an auto electrician? What is the rough time it would take the trace that wire and repair it?
Thanks.
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