1990 beretta timing chain

The firing order on all 60 degree V6 engines is 1-2-3-4-5-6. In 1990 GM stroked the 2.8 L engine from to 3.1 L. It's based on the 2.8 L V-6 engine found in 80's cars like the Camaro and Beretta.

you must of not put the chain on right. to set it right you must have the number one pistion at the top of cylinder on compression stroke. then line up your timeing marks on the cam shaft then put on the chain.

Do you have the 2.2 liter Ecotec 4-cylinder engine, the 3.5 liter V6, or the 3.9 liter V6 engine? If you have the 2.2 liter engine, there may be a camshaft/timing chain issue if you skipped a tooth when you put the chain back on the cams. If it's a 3.5 or a 3.9 liter V6, you may have incorrectly installed the push rods back into the engine. 3.5 liter intake push rods are approx 5 3/4" long, while the exhaust push rods are approx 6" long.
The 3.9 liter intake push rods are approx 5.81" long, while the exhaust push rods are approx 6.1" long. If you mix the two lengths up when you put them back in the engine, you're going to have problems.

I guess my first question is, did you check the fuel pump pressure ?

could be a stuck lifter

I checked the computer and were no codes

This question was listed under the 1990 Mitsubishi Minivan.

For the 1992 Mitsubishi Pajero V6 3.0L:

Firing Order:
1-2-3-4-5-6

Cylinders:
.....(back)
5..............6
3..............4
1..............2
.....(front)

Distributor:
....(back)
............(+)-screw
......2
1.........3
6.........4
......5
(+)-screw
....(front)

Let me know if this helped, or if you have additional information opr questions. Feel Free to contact me at FixYa.com!

timing could be off. timing chain or belt could be broken or gears teeth worn down.

vacuum line sounds like

I had a Beretta a while ago. I think it was an 89 or 90. It had a 3.1 engine. I don't know if the 2.8 used the same system, but at least one of the coil packs went bad and the car wouldn't start. It was running fine when I shut it off to go apply for a job and wouldn't start when I came back out. You could try looking at that.