Renault clio II 1.6
Hello i have a problem with my clio with k4m 744 engine
Bought the car a month ago, it ran well.
Did big service with timing belt, waterpump, oil, spark plugs, air filter.
After the timing belt change car seems to misfire on idle, runs quite rough and shaky. When driving no problem, car is really quick and responsive. Car is not throwing any fault codes but i can clearly hear it missing.
When i did timing belt i could see that last person hadnt done correctly so on tdc the camshaft notches were pointing in a small v angle. I zeroed the engine with timing belt off and put locking tools in. Did the replacement by the haynes manual so with crank and cam locking tools, loosened cam and crank gears, tensioned belt and then tightened crank and cam gears. Turned over engine 4 times and could still fit locking tools. 4 times again and still the same. So pretty shure the timing is correct. But still the engine idled worse than it did before even though last owner had done it wrong (the cam locking tool did not fit at all).
Since that i have changed all coils to new valeo coils. I have changed both o2 sensors. Map sensor, cleaned throttle body, new gaskets on intake manifold.
Still the same problem eith rough running and missing but no fault codes. Hooked up a delphi computer and checked live data. Runs at 800rpm warm accirdning to data, no insane amounts of knock sensor signals. Good o2 values both pre and post cat
Im at a loss of what to do now and would appreciate if anyone knows something that ive missed, im thinking maybe injectors but wouldnt that throw a fault code?
Bought the car a month ago, it ran well.
Did big service with timing belt, waterpump, oil, spark plugs, air filter.
After the timing belt change car seems to misfire on idle, runs quite rough and shaky. When driving no problem, car is really quick and responsive. Car is not throwing any fault codes but i can clearly hear it missing.
When i did timing belt i could see that last person hadnt done correctly so on tdc the camshaft notches were pointing in a small v angle. I zeroed the engine with timing belt off and put locking tools in. Did the replacement by the haynes manual so with crank and cam locking tools, loosened cam and crank gears, tensioned belt and then tightened crank and cam gears. Turned over engine 4 times and could still fit locking tools. 4 times again and still the same. So pretty shure the timing is correct. But still the engine idled worse than it did before even though last owner had done it wrong (the cam locking tool did not fit at all).
Since that i have changed all coils to new valeo coils. I have changed both o2 sensors. Map sensor, cleaned throttle body, new gaskets on intake manifold.
Still the same problem eith rough running and missing but no fault codes. Hooked up a delphi computer and checked live data. Runs at 800rpm warm accirdning to data, no insane amounts of knock sensor signals. Good o2 values both pre and post cat
Im at a loss of what to do now and would appreciate if anyone knows something that ive missed, im thinking maybe injectors but wouldnt that throw a fault code?
