@carsclinic why would anyone want to come to your garage when you have no skills when it comes to diagnosing faults in cars?
Below is a copy of a quotation you gave to a carnity member.
The real issue was a faulty idle control valve, a cheap and easy fix.
However, you wanted to change the plug leads, coil packs, air filter, throttle body servo, upper and lower intake manifold gaskets and refurbish the injectors, all at a cost of almost 3,000 dirhams. This would have been wasted money that did nothing to address the actual problem.
To anyone who knows anything about how an engine works, this is how someone operates when they can't perform simple diagnosis to find out what the actual problem is. They change every part they think could be faulty and hope the problem goes away. Which in your case, it wouldn't have.
How did you know the plug leads were faulty and needed to be changed? Did you check the resistance and test for leakage?
How did you test the coil packs? Do you have an oscilloscope in your garage?
What was wrong with the throttle body? Or was it just a guess which it obviously seems to be. There is no servo motor on the throttle body of that particular model, it has 2 mechanical cables.
Dirty air filter? Or dirty cheater too lazy to blow it out with an airline.
I assume you did tested the upper and lower manifold gaskets with a smoke machine to confirm they were actually leaking? Or did you at least spray starting fluid around it and monitor engine speed? Because it's a pretty time consuming job to strip the manifold off.
How do you know the injectors needed refurbished? Did you test the spray pattern and flow?
Amateurs and scammers like you are what gives the rest of us decent mechanics and technicians a bad name.