Finished a top end rebuild, now more troubles
#1
Racer
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Join Date: Sep 2002
Location: Austin, Texas
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I just finished putting my engine back together after a timing belt breakage, now I have some trouble. I can start the car but it will die right after it starts unless I give it gas. Then when it is going if I stop giveing it gas it will just die. When I have it up around 2000 RPM's it stays alive alright, but still feels rough. When I let it drop around 1000 RPM's It will backfire out of the front of the engine. The spark plugs all seem like they are firing, they are quite carbon covered even after the few minutes of messing with it. I am not sure what could be wrong. I do not think I have the vaccum hoses hooked up correctly so that could be part of it.
![](http://www.swt.edu/~cs1022/keith/vacuum.jpg)
The black tube in the picture is also connected to the fuel rail. which one of these connectors should it be connected to. Also, what connects to the other connector.
Thanks
![](http://www.swt.edu/~cs1022/keith/vacuum.jpg)
The black tube in the picture is also connected to the fuel rail. which one of these connectors should it be connected to. Also, what connects to the other connector.
Thanks
#3
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Mine's an 88, but it's probably the same. The vac line pictured (with the Y connection) should connect to the closest connector (the rear/right) one on the intake. The other parts of that Y should go to the fuel rail (like you said), where it splits and connects to both the the fuel pressure regulator, and the fuel dampner, and the other half of the Y (pictured) goes to the master brake cylinder area.
The other connector on your intake (that's missing a vac line) should have a line going to a sensor located on the top of the motor directly beneath the intake manifold's rear cylinder.
Email me if you want pix.
The other connector on your intake (that's missing a vac line) should have a line going to a sensor located on the top of the motor directly beneath the intake manifold's rear cylinder.
Email me if you want pix.