Ok So I drive a ek1 with a b18cr in it with 137,xxx on the clock.
The car drives fine at first when i just start it. But once it reaches the optimum temperature and after about 10-15mins+ of driving. It loses performance randomly. And when it loses performance, the car chokes, struggles, bogs, spikes, sputters the entire rev range in all gears.
Feels like I'm driving with the aircon on in "summer" and one of the spark plug leads out but much more rough.
Once the symptom arises I either have to drive a further 3min+ or turn off the car for a few minutes then its gone.
So far i've changed
The oil with fresh Mobil 1 Oil
Oem Fuel pump
Oem Oil Filter
Oem Fuel Filter
Oem Thermostat
Oem Coolant
Ngk Leads
Ngk Iridium spark plugs
This only happened since I changed the thermostat due to my old one was stuck open and the car never got pass 1/4 way on the thermo when driving.
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