1991 Toyota Paseo engine problems

Tiny
LESSEYBOY
  • MEMBER
  • 1991 TOYOTA PASEO
  • 1.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
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
Wednesday, January 21st, 2015 AT 6:22 PM

3 Replies

Tiny
TY ANDERSON
  • MECHANIC
  • 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)?
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Wednesday, January 21st, 2015 AT 7:46 PM
Tiny
LESSEYBOY
  • MEMBER
  • 2 POSTS
Yes compression was 20o psi on number one 190 psi on number 2 cylinder 200psi on number 3 and 4
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Thursday, January 22nd, 2015 AT 2:55 AM
Tiny
TY ANDERSON
  • MECHANIC
  • 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.
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Thursday, January 22nd, 2015 AT 8:58 PM

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