1991 Toyota Paseo engine problems

1991 TOYOTA PASEO
1.4L • 4 CYL • 2WD • AUTOMATIC
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LESSEYBOY
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My car is misfiring on number one cylinder I did a compression test it is 200 psi , I cleaned injectors , I changed plugs . But someone took of the cylinder head and after it was reinstalled it worked for some time and started misfiring on number one cylinder
Jan 21, 2015 at 6:22 PM
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TY ANDERSON
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  • 719 POSTS
Process of elimination.
Keep track of each part you swap with as you move forward.
Start with the easiest parts to swap with another cylinder

Swap the spark plug wires to see if the misfire follows
swap the fuel injector. inspect the distributor cap closely specifically with the cylinder one terminal.
Then move to mechanical
such as camshaft, rocker arms, valves.
Have you done a leak down test on each cylinder

Was the compression even on all cylinder (200psi on all four)?
Jan 21, 2015 at 7:46 PM
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LESSEYBOY
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yes compression was 20o psi on number one 190 psi on number 2 cylinder 200psi on number 3 and 4
Jan 22, 2015 at 2:55 AM
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TY ANDERSON
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  • 719 POSTS
swap parts to see if the misfire follows and do what i recommended in the last post.
You may want to do a leak down test to make sure your combustion chambers are sealing well.
It is not consuming fluids is it? Engine oil, coolant.
Jan 22, 2015 at 8:58 PM