Post by NurseHolliday on May 5, 2016 9:53:42 GMT
Well this is the first time I've had an MX5 that won't start!
On Sunday the alternator belt shredded itself and the AA man replaced it. In the shredding process, it took out a coolant hose, the one that connects just above the oil filter. Luckily that was damaged right next to the clamp, so we just cut it back by about 10mm and clamped it back on.
It started fine after the fix, ran fine, and I drove it home.
Yesterday evening, I went out to the car and it turns over fine but it just won't catch. Being on ITBs it's sometimes troublesome to start, but it usually catches, fires up, then cuts out a couple of times before it settles down. I can't help but the feel this is related to the issue on Sunday, but I don't know what to check.
The first thing I noticed was the FPR gauge is reading 0, one of the problems with not doing modifications yourself is that you don't know what everything is doing. The FPR seems to be be between the hard fuel lines coming into the engine bay and the fuel rail. It has a gauge sitting on top of it. I don't know if that is normally reading above 0 when the engine is off, so I can't say whether that's right, but I'm hoping someone might be able to tell me?
Very early on in life I was told a car needs 3 things to start, fuel, air, spark. It obviously has air as there's no filters and I can see the butterflies working when I open and close the throttle. So it must be fuel or spark, I haven't whipped the spark plugs out yet (I was in a bit of a hurry yesterday) but the 0 on the FPR gauge seems to be an obvious fuel issue. Now obviously my car's loom is modified for the throttle bodies, but could I or the AA man have knocked a fuel pump wire or something like that while fixing the belt and coolant hose? And how would this manifest itself now rather than before? Maybe what happened on Sunday is a red herring.
Any thoughts?
On Sunday the alternator belt shredded itself and the AA man replaced it. In the shredding process, it took out a coolant hose, the one that connects just above the oil filter. Luckily that was damaged right next to the clamp, so we just cut it back by about 10mm and clamped it back on.
It started fine after the fix, ran fine, and I drove it home.
Yesterday evening, I went out to the car and it turns over fine but it just won't catch. Being on ITBs it's sometimes troublesome to start, but it usually catches, fires up, then cuts out a couple of times before it settles down. I can't help but the feel this is related to the issue on Sunday, but I don't know what to check.
The first thing I noticed was the FPR gauge is reading 0, one of the problems with not doing modifications yourself is that you don't know what everything is doing. The FPR seems to be be between the hard fuel lines coming into the engine bay and the fuel rail. It has a gauge sitting on top of it. I don't know if that is normally reading above 0 when the engine is off, so I can't say whether that's right, but I'm hoping someone might be able to tell me?
Very early on in life I was told a car needs 3 things to start, fuel, air, spark. It obviously has air as there's no filters and I can see the butterflies working when I open and close the throttle. So it must be fuel or spark, I haven't whipped the spark plugs out yet (I was in a bit of a hurry yesterday) but the 0 on the FPR gauge seems to be an obvious fuel issue. Now obviously my car's loom is modified for the throttle bodies, but could I or the AA man have knocked a fuel pump wire or something like that while fixing the belt and coolant hose? And how would this manifest itself now rather than before? Maybe what happened on Sunday is a red herring.
Any thoughts?