Cosworth ignition amplifier
#1
PassionFord Post Whore!!
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Just returned from central day
I think I have a problem with the ignition amp on my car, after the engine has been running for a good while, lets say 1 hour down the motorway for example,
The car develops a missfire/back fire always ar 4000rpm, I have upgraded to a gpa coil, new champion qc59c plugs, the cap and arm are new. I have renewed the heat conducting paste for the module.
When the misfire kicks in the rev counter normally drops to zero for a second.
I've had a read on google and a site mentioned cooling the ignition amp with water, this helped whil the engine was revved up in my garage.
Anybody come across anything like this before??
Its on a cosworth managed cvh turbo
I think I have a problem with the ignition amp on my car, after the engine has been running for a good while, lets say 1 hour down the motorway for example,
The car develops a missfire/back fire always ar 4000rpm, I have upgraded to a gpa coil, new champion qc59c plugs, the cap and arm are new. I have renewed the heat conducting paste for the module.
When the misfire kicks in the rev counter normally drops to zero for a second.
I've had a read on google and a site mentioned cooling the ignition amp with water, this helped whil the engine was revved up in my garage.
Anybody come across anything like this before??
Its on a cosworth managed cvh turbo
#2
20K+ Super Poster.
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In what way did the water/cooling help, did you drive the car afterwards to see if it had cured the misfire ?
It could well be the amp breaking down, but would have expected it a lot sooner, where abouts have you put the amp, maybe it is a area where it is collecting a lot of radiant/transfered heat ?
Does it only play up when hot ?, maybe try another one, a known good one.
tabetha
It could well be the amp breaking down, but would have expected it a lot sooner, where abouts have you put the amp, maybe it is a area where it is collecting a lot of radiant/transfered heat ?
Does it only play up when hot ?, maybe try another one, a known good one.
tabetha
#3
PassionFord Post Whore!!
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when the misfire starts it will even do it when revving stationary, the water test was simply pouring a couple of pints of cold water over it as it was running and revving, to which it did appear to help for a brief period.
The amplifier is mounted on the n/s inner wing in its own clear space
I can't find the spare I had to test as that was my first thought, I will replace it as a matter of course, even if to just eliminate it,
Cheers tabetha
Stu
The amplifier is mounted on the n/s inner wing in its own clear space
I can't find the spare I had to test as that was my first thought, I will replace it as a matter of course, even if to just eliminate it,
Cheers tabetha
Stu
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