| Author | Topic |
|---|
Location:
venezuela
Registered:
December 2004
|
|
microtech problem no sparks...please help!!!!
|
Sun, 26 December 2004 17:29
|
 |
Hi friends, i installed a lt8 microtech system in a mitsubishi v6 3.0 lts engine, the wiring is good, i see the CAS signal with use a oscilloscope, but i dont have sparks , if i put the handset in the test mode..... the sparks and injectors pulses are good..., but when i cranck the engine ..., no sparks and no injector pulses, i am installed about 4 microtechs on a 4g63, vw 2.0 lts, daewoo 2.0 and mr2 3sgte engines without the problems, i need help as soon as possible... please, sorry for my poor english..
__________________
|
|
|
Location:
Canberra
Registered:
May 2002
|
|
Re: microtech problem no sparks...please help!!!!
|
Sun, 26 December 2004 22:00
|
|
I'm sure you've already checked, but does the Microtech have power when cranking, or is it possible that the ignition 12V switching wire to the ECU loses power when the ignition is in the "start" position, shutting off the microtech?
If it does have power when cranking, can you see an RPM reading on the handset?
|
|
|
Location:
venezuela
Registered:
December 2004
|
|
Re: microtech problem no sparks...please help!!!!
|
Mon, 27 December 2004 03:41
|
|
|
hi, thanks for replay, the ambar led dont blink when i crank the engine..., stay brigth on...,and the red led stay off all the time.., for this reason.., i think..., that the microtech dont see the cas signal, but i dont sure because with the osciloscope is perfect.., the power (12 volts) is perfect on a microtech and the coil (direct30+ and switchet 15+), all of grounds are good, but tomorrow i will see the rpm in the handset.., thank you again
|
|
|
Location:
Wollongong
Registered:
November 2004
|
|
Re: microtech problem no sparks...please help!!!!
|
Mon, 27 December 2004 10:48
|
|
How do you know the Injectors are getting no pulse?
Have you checked they are pulsing by putting the osciloscope on the injector it self?
How do you know there is no spark? Have you run a timing light on it?
If you have no spark, check the plugs... We had a set foul today on an ECU install.
Check they are not fouled, check you have injector pulses at the injector via the osciloscope...
|
|
|
I supported Toymods
Location:
Australia
Registered:
November 2003
|
|
Re: microtech problem no sparks...please help!!!!
|
Mon, 27 December 2004 12:47
|
|
The orange LED flashes I think when the injectors are pulsing.
Red is an error, you usually wont get that until the car is started.
Are the ignitors on the unit inbuilt? or external?
If they are external, is the ecu setup correctly for them?
Are they grounded correctly?
|
|
|
Location:
venezuela
Registered:
December 2004
|
|
Re: microtech problem no sparks...please help!!!!
|
Tue, 28 December 2004 03:49
|
|
|
Hi friends and thanks again for your help.., yes i put the osciloscope in the injectors wiring..., no pulses...,all grounds are good, the power stay at microtech and the coil..., (12volts)when i cranck the engine...., the car has a external igniter, ignition coil and tdc sensor inside (built in) the distributor, i check the sparks crancking the engine with a spark plug wire conected to the secundary terminal of the coil with 1 spark plug earthed without the distribuitor cap, if i put the handset in "TEST MODE" with this method..., have a great sparks and injectors pulses good.., the green led and the ambar led stays brigth on without blinking and the red led never..., i am very confused with this problem.. today im faxed the wiring diagram of the car to the microtech dealer...., thanks again...
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: microtech problem no sparks...please help!!!!
|
Tue, 28 December 2004 11:46
|
|
did u buy the microtech new or 2nd hand
if new did u buy it to suit the v6 engine
if 2nd hand maybe its off a different engine and the setup for it is wrong
its very hard to go wrong with microtechs if u buy themn new and to suit the engine u r fittin it to
basically check the signal in
then signal out from microtech to the ignitor
then signal out from the ignitor to the coils
if u get no spark and no injectors at same time then its either crank signal in
or microtech is set up wrong internally or programmed wrong
usually if u get either one or the other is a stupid problem
but when u get no injetors or spark then its the crank sensor signal in or the mirotech is setup wrong
|
|
|
