cheap is relative.
usually this is what I ran into. Customer rolls in - says that he has a weird problem, Before working I mention my diag fee - if the work order is not signed up - (cheapskates usually left) - e.g. I would ask for Rs 2000/- for diagnosis
Same guy goes to 3 other shops and spends Rs 1000/- each time - he spent Rs 3000/- in total and still has the problem - but now half the car has been "paana taami" very sloppily and has eleven more issues.
JDM are far far more expensive to work on because new parts would cost you a very pretty penny (I dont work with scrap yard sourced disposable parts)
incident - accord CF3 rolls in with burnt ATF, sloppy driving, no shifting - (I already know this issue - the pressure control valve body in the trans has took a dump). Customer disagrees and takes it elsewhere where he was told - sirf turbein ka masla hai - (Torque converter is called turbine in Karachi)
he installs one from junk and promptly fries it. - goes on for 3 times and then gets a workshop to "change the transmission pump" - same problem again. - he spent 75% of the amount of a rebuild and still had the same issue again. So his actual repair cost was at 175% of normal.