I have an '88 EA single point fuel injected falcon. Over the last couple of months, it is more and more keen to run on. When I am turning it off, it coughs and coughs, to the stage where I am stopping it on the clutch. I am about to replace the leads and plugs, but don't think this will help at all. I am lost for ideas about what is causing it. Has anyone experienced the same/similar problems. Any advice or information would be welcome.
How hot is it getting? I've noticed that the CFIs in particular will do this if they're too hot.
Otherwise I suggest timing, they'd be the two main culprits.
__________________
Proud TQE Operator and President of SEFAG - the Society for the Elimination of Ford Automatic Gearboxes
Pacemaker headers + 2.5" exhaust
EF Fairmont interior
MP3 player
Lowered King springs
5 speed manual
EF motor
It is worse on a hot day, but I have just had most of the cooling system fixed. How does the timing affect it, given that there should be no spark to the engine?
I have heard that excessive deposits on top of the pistons get red hot, acting like a spark plug and there for burning fuel as per normal, until these deposits cool off. This may not be entirely true but it makes sense to me.
I wouldnt be surprised if timing was contributing to it though. That and perhaps crap fuel. Try some injector cleaner when you fill up next, it might help clean some of the crap out.
* Idle speed too high
* Ignition timing incorrectly adjusted
* Thermo-controlled air cleaner heat valve not operating properly
* Excessive engine operating temperature
__________________
Jack Travis, E-Series Acting President
1989 Ford Fairmont Ghia turbo/GL replica (underway)
1994 Eunos 800M
1990 Ford Laser S
I have an '88 EA single point fuel injected falcon. Over the last couple of months, it is more and more keen to run on. When I am turning it off, it coughs and coughs, to the stage where I am stopping it on the clutch. I am about to replace the leads and plugs, but don't think this will help at all. I am lost for ideas about what is causing it. Has anyone experienced the same/similar problems. Any advice or information would be welcome.
Thanks
Dave
Running on requires fuel.
I would suspect as was the case with a mates EA CFI,that your injectors are leaking after you have turned off the computer and fuelpump
Yeh it's CFI but, they pretty much all leak to some degree. Remember the CFI manifold will also trap vapour for a little while, which can be sucked in and burnt.
__________________
Proud TQE Operator and President of SEFAG - the Society for the Elimination of Ford Automatic Gearboxes
Pacemaker headers + 2.5" exhaust
EF Fairmont interior
MP3 player
Lowered King springs
5 speed manual
EF motor
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.