Hello! I have a Fiat Fiorino Fire 1.3 2010, 2 months ago more or less the light of Check Engine, a scanner elm327 that I bought and gave me the error on the IAC, clean the complete acceleration body, control the continuity of the IAC cables and the TPS, also the resistances of both actuators and everything was fine, armo everything and the car and the car and the car 850/900RPM ... It was a snack snoring. A few days later change the spark plugs and cables, data in case it is necessary.
Now the car does not regulate well, it hits accelerations, not very high, you see about 1500/1600rpm, the relash is unstable, 1000/1200rpm. Remove the acceleration body and it is clean, review a cleaning for doubts. The IAC works well, the embolo moves, its resistance is 50ohm. I did not measure the resistance of the TPS because the night came to me, but with the scanner running I had 1000rpm at 1200rpm and the butterfly position always was 0 (without stepping on the acelerer, of course). The temperature sensor works, the electro turns on at 95c.
Can cables or spark plugs have left bad and provoke this? Tomorrow I am going to check the TPS progressively resistance, but what else can it be happening?
What other scanner data should I obsear to get any conclusion?