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Kia Users/technicians' Help Needed! - Car Talk - Nairaland

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Kia Users/technicians' Help Needed! by temmyt007(m): 8:43am On Jul 14, 2020
I have been having a hard time with my 2007 kia rio 1.6 for some months now. It idles roughly and sometimes revvs itself up to 40 hundred RPM even on motion. When on motion, it can start fluctuating between 1500 and 2000RPM, sometimes revv up to 3000 and 4000RPM by itself. It is also affecting the brake response.

OBD scan pointed to TPS, MAP sensors and IACV (high). Got new TPS and MAP sensors for it and replaced the IACV with a used one even though removing the cable while engine was running indicated that IACV was fine. These sensors and valve could not even be gotten around me, had to get it sent down from Lagos so returning them isnt that easy.

Myself and my technician have checked for vacuum leaks round the intake manifold and other parts, none.

It really got worse yesterday and the car was really out of control while in motion. It revvs and accelerates and also decides to lose power and break pressure when it chooses.

Is it possible that both the previous and the used IACV are bad?
Re: Kia Users/technicians' Help Needed! by Billiebaba(m): 10:24am On Jul 14, 2020
temmyt007:
I have been having a hard time with my 2007 kia rio 1.6 for some months now. It idles roughly and sometimes revvs itself up to 40 hundred RPM even on motion. When on motion, it can start fluctuating between 1500 and 2000RPM, sometimes revv up to 3000 and 4000RPM by itself. It is also affecting the brake response.

OBD scan pointed to TPS, MAP sensors and IACV (high). Got new TPS and MAP sensors for it and replaced the IACV with a used one even though removing the cable while engine was running indicated that IACV was fine. These sensors and valve could not even be gotten around me, had to get it sent down from Lagos so returning them isnt that easy.

Myself and my technician have checked for vacuum leaks round the intake manifold and other parts, none.

It really got worse yesterday and the car was really out of control while in motion. It revvs and accelerates and also decides to lose power and break pressure when it chooses.

Is it possible that both the previous and the used IACV are bad?
Post codes here first, is your car throttle by wire or cable,

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