So the Buick Park Avenue I acquired a couple of weeks ago has FTPd, and all of my attempts to get it working again have hitherto proven fruitless. I've posted about this in the
Stupid Question Ask a Shiter thread and had a few suggestions / pointers which I've tried, but I'm not sure how many people actually read that thread so I thought I'd start a new one, which can then go on to be an update thread about the car for as long as I keep it.
The car was running fine up to Friday before last, and hadn't given any indications of impending doom. I went to it on the Saturday and it started straight up, ran for two seconds then died, and it's not started since. The engine is the 3.8-litre V6 which has been powering GM products since the late 14th century, albeit improved* with the addition of fuel injection and coil pack ignition.
Thus far I have been able to ascertain the following:
-It has sparks - as demonstrated both by pulling an HT lead and sticking it on a spare spark plug sat on the engine, and by the fact that it fires up and runs on Easystart.
-It has compression - I've not done a compression test or owt but you can hear it has plenty of it by the sound it makes when turning over on the starter.
-It has fuel - I pulled the inlet hose off the fuel rail and turned the ignition on and it shot a geyser of petrol all over the engine bay as the pump primed. The pump is also pumping as it should when the engine is cranked over.
-It has power to the injectors - not a full 12v, but then I assume the injectors may run on a lower voltage anyway.
-I was able to ascertain, with the help* of the world's shittest test light, that the injectors are pulsing, which suggests that the ECU is working as it should.
So it has sparks, fuel and compression, so it should start, right? So WTF is going on?
Dodgerover suggested it could be plugs - they do look pretty ancient to be fair (and one of the leads on the front bank left its metal clip thing on the plug when I pulled the lead off), so I'm going to replace them anyway as I can get a new set for a tenner, but surely if they're so shagged that the engine won't even cough, it wouldn't fire straight up and run "normally" on Easystart?
One of the American forums I looked at suggested that it could be one naff injector, which can then knock out all the rest, but I've tried unplugging each injector in turn to no avail.
I'm rapidly running out of ideas. I'm not going to take it to a garage - even if I could find one locally which knew these engines (I assume it's the same engine as was used in the Blazer, but they only sold about three of those over here), with the other issues the car has it's really not worth spending that sort of money on. I'm therefore hoping that somebody will come up with something obvious that I've overlooked (which is quite likely - I'm not much of a mechanic) and she'll soon be back to wallowing around the back lanes of Norfolk in her two working gears like some escapee from a low-budget Florida trailer park.