Question about 1990 Toyota Pickup

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Changed timming belt while replacing the water pump

At first it ran great, now sometimes it starts fine and runs fine but other times it turns over alot before it cranks and it runs poorly at low speeds and sometimes cuts off, we aligned both cams and crank pulleys before we removed old belt and made sure they were in the same place when we installed new belt, is my timming off just abit and if so are there 2 connections in the diagnostic box I need to connect together to get the true reading with the light???? Or is there something else wrong? I do know it should read 10 degrees

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Since it ran fine at first, I would think you got the cams and crank correctly timed. the two connections in the diag box to connect are "T" and "E1". You may want to check out the distributor to see if the air gaps from the star wheel to the pick up coil projections are less or more than the correct--.008-.016". If so, the bearing is bad (the star wheel will wobble) and you should replace the distributor. Also, the distributor has three coils in it that should be checked for proper resistance--140-180 ohms. The car will run with one of the three coils dead but not as smoothly.

Posted on Feb 28, 2009

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