1992 Mazda Truck B2600i Cranks but will not start

MANSON

MEMBER
1992 MAZDA TRUCK
4 CYL
4WD
MANUAL
135,000 MILES

I washed my engine awhile ago, it ran rough on the drive home then it ran smooth just as I was pulling into my neighborhood. The next morning I went to start the truck and it would only crank, I've checked for spark and found I had no spark. I have a B2200 and most ignition parts are interchangeable, so I've checked my coil, distributor, I have also tried to pull my MIL codes with no success, the check engine light is on but I can't get the codes to flash. I'm wondering if it could possibly be the distributor, and if so how could I get it tested? Is there any sensors that would send the ECM a signal to not send a signal to the distributor? Could it be an ECM problem? If you have any ideas where to go with this it would be VERY appreciated.

5 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Where did you check for spark? At the plugwires or at the coil-if you check both areas and still no spark-check the pick-up coils resistances in the distributor and then the ignition control module.

Do you have power at the positive terminal of the coil? Also do this get a test light and probe the negative terminal of the coil and have helper crank engine over is the test light blinking?

If the pick-up coil checks out and coil wire is good and power at the coil-get the ignition control module tested.

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Saturday, January 19th, 2008 AT 10:03 PM

MANSON

MEMBER
3 POSTS

I checked at the plug wires. I've replaced the coil with the one from my B2200 and put the one from the B2600 in my B2200 and the 2200 started no problem. I haven't checked power TO the coil.

I also changed the ignition control module (changed it with the one from the B2200) and it didn't seem to be the problem.

I'm a HD mechanic so I'm fine digging as deep as needed, but I'm not used to diagnosing spark ignition unfortunatley.

I'll check the + wire to the coil and check the distributors continuity. Any idea of what my resistance should be between any of the pins?

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Sunday, January 20th, 2008 AT 1:00 PM

RASMATAZ

MECHANIC
75,992 POSTS

See below

Good Luck

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+1

Sunday, January 20th, 2008 AT 4:22 PM

MANSON

MEMBER
3 POSTS

Well I'm a step closer! I replaced my crank position sensor after checking my resistances. Now my only problem left I think is timing my distributor. I set my engine to its 5 degrees TDC, set my dimple on my distributor shaft to the notch on the housing, I know my timing disk in the distributor is right, and my rotor is pointing as close to #1 as I think I can get it. The engine now seems to try to fire and lets out the occasional putt or two, sometimes it backfires. Any ideas on where to go with this. I'm going to keep messing with my timing, I'm thinking its close but not quite right.

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Friday, January 25th, 2008 AT 5:22 PM

RASMATAZ