Agonising Issues - Help

[Victor520]

Well after my subaru being into 2 garages, car is still lumpy, hesitant under load.

History

1) Vehicle has had compression test and coil packs tested and comes back nothing
2) Under different diagnostics comes up with issues under random banks

Changed the Gearbox oil

Then after that the Battery light came on, so changed the alternator, to find the battery light still on.
The car is charging fine and the alternator works fine.
However the battery light stays on.
Battery has been changed for a new one....and battery light stays on.
Unfortunately I do not have the money to keep throwing at it.
So the problems at the moment are
1) Battery light continuously on.
2) Hesitant and missing under load.
Options
Thinking of fixing - if anyone can offer any advice.
Selling as is and selling at a huge loss.
Thoughts anyone?, just do not know what to do..love the car.....but...after months of issues......I give up ..nearly... if i want to diagnostic by myself does the tool can help me?
Thanks

 

[Dayline668]

What model u driving..? Where do u stay..? Which workshop do u go..? Have u try reset ECU..? Have u check MAF sensor..? O2 sensor..? Did u go to a subaru pro shop for diagnosis..?

 

[DanzEterna]

try fitting a voltage stabilizer with grounding cables.

---------- Post added at 02:41 PM ---------- 6 hour anti-bump limit - Previous post was at 02:34 PM ----------

is your alternator the correct voltage?

 

[nyantong]

Firstly, has your scanner turn out any DTC trouble codes? If yes, what are they?
Before even changing your battery, did you perform a battery test or load test before changing it?
Before changing the alternator, did you check the charging voltage or alternator cables' connectivity?
And why on earth does someone change the alternator (which is more costly and less likely the failed component) before changing the battery (more likely the failed component and cheaper) even without any tools or equipment to check?
As for the hesitant engine, try checking the fuel system. If possible, check the fuel filter, fuel pump and fuel regulator pressure.
Another possibility is a leak in a vacuum hose. Also check the intake system especially the throttle body, air sensors for any sign of dirt, oil or excessive carbon buildup.

 

[Victor520]

thank you for your help , i will try

 

[Victor520]

Firstly, has your scanner turn out any DTC trouble codes? If yes, what are they?
Before even changing your battery, did you perform a battery test or load test before changing it?
Before changing the alternator, did you check the charging voltage or alternator cables' connectivity?
And why on earth does someone change the alternator (which is more costly and less likely the failed component) before changing the battery (more likely the failed component and cheaper) even without any tools or equipment to check?
As for the hesitant engine, try checking the fuel system. If possible, check the fuel filter, fuel pump and fuel regulator pressure.
Another possibility is a leak in a vacuum hose. Also check the intake system especially the throttle body, air sensors for any sign of dirt, oil or excessive carbon buildup.

thank you for your help and i had solve it with your help
thx very much