Technical Help needed for a 1998 Fiat Brava 1600 SX

[MulletPolice]

Hello there

I have bought a 1998 Fiat Brava 1600 SX knowing that it needed a bit of work, however what needs to be done is a little puzzling!. Its done 94k and I bought it with the intention of putting a new cambelt on straight away because its hasn't been done yet.

The car idles poorly and is underpowered. I took it to a auto-electrician and have found out that cylinder 3 is not going at all and 4 is only half output. Sparkplugs, leads, injectors and the coil are good. Compression test came out with a good result across all 4 cylinders and now I am running out of ideas.

If anyone has any ideas or suggestions about what's going on that would be greatly appreciated.

Cheers
Nick

 

[Gregovic]

have you changed the sparkplugs and leads? (They wear over time, and changing them can make a world of difference) Injectors all have good resistance? (Above 13 ohms) Have you checked the spark at the nr. 3 cilinder?