MX-3.com

I've scope, I borrowed it today. I will check NE1 G and ICM signals. The ground pins on the 6 pin distrbutor connector should be ground all the time ? or only when the key is in the ON position ?

I've tried to obtain spark without the cap on the distributor. I've connected the "fat" cable directly to the coil output and the other end close to the ground "3-4mm" there was no spark at all even without the cap and the rotor. Is there any possibility that the auto alarm is ca...

Latest values, all connectors were connected to their destinations so the circuit was live: 3 pin connector: A - idle 12V when trying to start 9.5V 6 pin connector C - idle NE1 0V trying to start: increasing to 2.5V D - idle CID 5V trying to start: decreasing to 0 and increasing to 5V. F - idle ICM ...

Fu... I've performed all the tests, there is no brakes, shorts in the harness. Ignitor, Ignition module, coil, Hall sensors everything is OK. Only one more issue has left, why the hell ECU is giving 0.25V on the 1G, i found the information that this one should be at least 0.7V is this is true ? Does...

So the distributor is OK wiring is OK, but there is no spark what the f... is going on ?
How can i diagnose injectors and fuel pump ?

There is no any errors on ECU.

I've done some tests from the engine side:

6 pin connector: all OK

3 pin:

A, +12 OK
B, if connected to the ECU as red -> break.
C, if connected to the ECU as yellow/blue -> break.

Can someone can confirm where the B and C are going to ECU ?

I've took all these parts to the guy who has equipment to diagnose it. The coil is OK, also the ignitor is OK, also the hall sensors are OK, so the distributor is OK. This is a good and bad news, i don't spent a lot of money for distributor but I must find a reason of a spark lack. The spark from my...

I've took all these parts to the guy who has equipment to diagnose it. The coil is OK, also the ignitor is OK, also the hall sensors are OK, so the distributor is OK. This is a good and bad news, i don't spent a lot of money for distributor but I must find a reason of a spark lack. The spark from my...

OK, one more thing, which of these pins on the picture is A ? first on the left ? B is known :) and the C is near the coil tower ?. If I switched the C and A during measures values are like these: A-C 1kOhm A-B 1Ohm B-C 1kOhm C-HT unknown, I don't have coil with me in the work :) the primary is A-B ...

I have such 3 pin connector.

.


The parameters of the transistor which i want to use:
http://katalog.elektroda.net/dwpl.php?file=data/BU/BU931.pdf -> Download

<small>[ June 28, 2004, 04:16 AM: Message edited by: Mariusz ]</small>

Lates coil update, I've done tests once again: C-A , 1kOhm C-B , 1Ohm B-A , 1kOhm C-HT, 15kOhm obtaing used spare parts for mazda in Poland is not so simple. There is lot of toyota's hyundai's etc on japanese junkyards but mazda is realy hard to find. So I'm in deep sh.. IanL: I don't have test data...

I found this NPN, it was in the second part. <img src="http://www.szas.uk.to/p1.JPG" alt=" - " /> and the transistor it self <img src="http://www.szas.uk.to/p2.JPG" alt=" - " /> I've checked the transistor with the resistance meter. There is no short between C...

And where the ignition module is located ? also the coil ? Can someone sent me electrical schema of the ignition system with coil and the distributor ? I think that the distributor is ok but the ignition module is bad. <small>[ June 26, 2004, 09:42 AM: Message edited by: Mariusz ]</small>

I've dismounted distributor into parts. <img src="http://www.szas.uk.to/22.jpg" alt=" - " /> Resistance values on this part with pipe on the top. Pinout 1 , 2 ,3 , PIPE 1-3 - 1kOhm 2-3 - 2Ohm 1-2 - 1kOhm But I'm not able to locate this transistor, also what to check on the termin...

Hi IanL, there is no spark at all. I've removed black cover from the distributor. There is something like "finger" and the black thing,probably the electronics. How can I diagnose which of the distributor elements is bad ? I can check the resistance of this finger, but where to look for th...