MX-5 OC Forum

Did you ever resolve the problem, some of us (at least one of us :) ) would like to know?

Unless Mazda are using a non-standard O2 sensor it's a 22mm spanner you need.

All MX-5s are imports, it's just that some were official, through Mazda UK, and others were 'grey' imports, the earlier grey imports being 'Eunos' models, Eunos being a 'local' Japanese  brand name for some models. In this case it's the offical imports that had the immobiliser fitted, not the Eunos version, As ...

Two things come to mind, one easy to check, the other less so. First, try jumping the FP and GND terminals in the diagnostic box. If this works then it's likely that the airflow switch in the MAF sensor has failed. Unfortunately this is not definitive as some of the early MX-5s had an aftermarket Alarm/immobiliser fitted by the importer; ...

Assuming the head you're interested came from a mk1 then there are no significant differences, especially if you are buying a 'bare' head, without cams, valves, etc. The mk2 head is different on the inlet side, and the mk2.5 differs again, with the VVT inlet arrangement. To reiterate, all the mk1 1.8 heads I've seen or worked ...

Although a service is always a good idea, I suspect you have a specific problem. The crankshaft sensor, situated low down on the front of the engine, has been the cause of starting difficulties on several cars that I've had the pleasure of servicing. It's not a particularly expensive part (about £45 on ebay) and very easy to fit. ...

In addition to the Crank Angle Sensor O ring, there is another quite common source of oil leakage, especially on older models. There is an oilway between the block and the head at the rear of the block on the exhaust side, with the passage of time the pressure forces a little oil out between the block and head. Though this normally only causes the ...

Yes, there's a clip that's released by squeezing in the center. You may need a screwdriver to carefully lever the plug from the connector, but only when you're sure you've released the clip.

Unfortunately it's not quite that simple. The injectors get a 12v supply via the fuel injection relay, so , when the ignition is on you should get 12v on one side of the injectors. The way it works is that, in order to 'open' the injector the ECU will 'pull' the other side of the injector to ground, so, when the engine is not ...

I'm not sure whether the immobiliser is incorporated into the ECU on your car, I rather suspect not as my '95 1.8 didn't have one. If this is the case then you're probably better off getting a replacement ECU from e**y or Andrew at autolink. The only issue I can forsee is that the later mk1 1.6 models were not sold in great ...