vag 1.8t coil on plug overheating
#1
vag 1.8t coil on plug overheating
Hi all,
I recently installed vag 1.8t coil on plugs to my 1992 mk1 1.6 turbo. I followed Braineack's how to guide, but I was getting no spark at all. So I grounded the tach of all of the coils to the head as I didn't think the signal was grounding properly.
I also have no rpm on the tacho, but I do have a reading in MS. Though I learnt that on my car the tacho is ECU driven.
The engine then fired straight away and ran well for 15 minutes until it started running on 3 cylinders and then cut out completely. After letting the engine cool down it ran again fine, until it started running on 3 cylinders again.
Black/white and yellow/blue are bridged in the hollowed ignitor as I believe this is the signal from the ECU and the signal to the tacho.
I originally had a 1k resistor between 12v and these two, but removed it on the advice of Reverent. Either way I have no rpm readout in the tacho and the coils are overheating or something!
Is there anyone out there running these Coil on plugs and could there be something I have forgotten to change in Tunerstudio?
msq is attached.
Any help much appreciated!
I recently installed vag 1.8t coil on plugs to my 1992 mk1 1.6 turbo. I followed Braineack's how to guide, but I was getting no spark at all. So I grounded the tach of all of the coils to the head as I didn't think the signal was grounding properly.
I also have no rpm on the tacho, but I do have a reading in MS. Though I learnt that on my car the tacho is ECU driven.
The engine then fired straight away and ran well for 15 minutes until it started running on 3 cylinders and then cut out completely. After letting the engine cool down it ran again fine, until it started running on 3 cylinders again.
Black/white and yellow/blue are bridged in the hollowed ignitor as I believe this is the signal from the ECU and the signal to the tacho.
I originally had a 1k resistor between 12v and these two, but removed it on the advice of Reverent. Either way I have no rpm readout in the tacho and the coils are overheating or something!
Is there anyone out there running these Coil on plugs and could there be something I have forgotten to change in Tunerstudio?
msq is attached.
Any help much appreciated!
#10
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I think you need this:
Megasquirt MSEXTRA / MS3EFI • Spark 'booster' (PNP circuit) (View topic)
It says its for logic-driven coils, not dumb coils which need an igniter.
Megasquirt MSEXTRA / MS3EFI • Spark 'booster' (PNP circuit) (View topic)
It says its for logic-driven coils, not dumb coils which need an igniter.
#12
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I think you need this:
Megasquirt MSEXTRA / MS3EFI • Spark 'booster' (PNP circuit) (View topic)
It says its for logic-driven coils, not dumb coils which need an igniter.
Megasquirt MSEXTRA / MS3EFI • Spark 'booster' (PNP circuit) (View topic)
It says its for logic-driven coils, not dumb coils which need an igniter.
MS3-Pro and MS3-Pro Module feature a similar high current logic ignition drive circuit.
#13
With insufficient drive current, the main internal transistor can't pull the normal max current through the coil.
The miata 99/00 coils take a bit more current than the AEM series 1 outputs can. This may be the reason for "99/00 coils are weak" claims when used with the AEM.
With sufficient drive current, the 99/00 coils are pretty strong.
#14
Hi,
sorry for digging out this old Thread. Has anyone a solution for the "RPM" problem?
I read a few instructions about cops and wiring. Most people use the Toyota cops.
There is a pin named "tach" but on all instructions for this VAG cops its named ECU ground.. I think they are differen and that is the reason.... but im not sure.
hope someone has information for me
sorry for digging out this old Thread. Has anyone a solution for the "RPM" problem?
I read a few instructions about cops and wiring. Most people use the Toyota cops.
There is a pin named "tach" but on all instructions for this VAG cops its named ECU ground.. I think they are differen and that is the reason.... but im not sure.
hope someone has information for me
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