I got one Calibra with a C 20 XE engine fitted.
It performs like 40bhp engine, when your push it!
At around 4000revs, when your press pedal 2 tha metal, then the revs drops instead of rise. It drops for a second or two, then revs up...
I have checked/replaced following parts:
-fuel pressure 2.5-3.0 bars
- new fuelfilter
- HT leads, new sparkplugs, replaced distributor, whole HT assembly from another car
- tested all hoses for vacum leaks
- replaced airflowmeter
- replaced SFI box
- replaced intake manifold gasket
- checked camshaftbelt alligment
When I rev the engine up slowly, then no probs, but when the engine is put at work the fault occurs.
Anyway, the ECU didnt store any fault-codes...
Help! I'm lost
(of cuz, the only thing I dint check was those injectors)
regards from DK