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Hi guys,
For about 2 months, my ep3 has been quite aggressively jumpy with light revs (mainly 2nd). At the time my EML was on and a diagnostic tool said it was running too rich. So I replaced the post cat sensor as that's more likely to fail due to heat exposure. I would also like to mention that the EML was very temperamental turning on or off every other day - sometimes even a week at a time... anyway, it was still quite jumpy and I read up on the idle control valve being a common problem, so took off the induction, opened the throttle body and sprayed some brake cleaner in there.
This cured the problem for about a month up until now with very little jumpyness. I would like to mention the EML came back on with the same error as before about a week ago, so I changed the pre-cat sensor the saturday just gone and next day the car went back to its old jumpy self.
So what I'm asking is: would I benefit from stripping down the throttle body and giving the idle control valve a thorough clean? If the problem still persists could it be the TPS?
Oh, and at the latest service carried out start of Febuary the guy mentioned a small hole in my back box. This couldn't cause the hesitation and jumpyness could it...? Starting to worry now because last night in VTEC in 3rd gear it started doing it which is never has done before. I'm going to properly clean the idle control valve tomorrow regardless.
Also, with regards to the idle (I'm sure this is all linked) as it happened when the pre cat sensor was fitted this weekend too.
It is VERY temperamental with idle when warm sometimes being the normal 850rpm. But sometimes it will be 750 standing still when warm and 500 coasting when warm (before I sprayed the TB before it would stall as I was coming to a stop sometimes)
When cold it is between 1200 and 1500 but soon drops to around 1100 then it starts spazzing out when warm.
Thanks in advance
PS: I'm aware there are similar threads, but with the random EML complications cropping up on mine it's not entirely similar to other peoples.
For about 2 months, my ep3 has been quite aggressively jumpy with light revs (mainly 2nd). At the time my EML was on and a diagnostic tool said it was running too rich. So I replaced the post cat sensor as that's more likely to fail due to heat exposure. I would also like to mention that the EML was very temperamental turning on or off every other day - sometimes even a week at a time... anyway, it was still quite jumpy and I read up on the idle control valve being a common problem, so took off the induction, opened the throttle body and sprayed some brake cleaner in there.
This cured the problem for about a month up until now with very little jumpyness. I would like to mention the EML came back on with the same error as before about a week ago, so I changed the pre-cat sensor the saturday just gone and next day the car went back to its old jumpy self.
So what I'm asking is: would I benefit from stripping down the throttle body and giving the idle control valve a thorough clean? If the problem still persists could it be the TPS?
Oh, and at the latest service carried out start of Febuary the guy mentioned a small hole in my back box. This couldn't cause the hesitation and jumpyness could it...? Starting to worry now because last night in VTEC in 3rd gear it started doing it which is never has done before. I'm going to properly clean the idle control valve tomorrow regardless.
Also, with regards to the idle (I'm sure this is all linked) as it happened when the pre cat sensor was fitted this weekend too.
It is VERY temperamental with idle when warm sometimes being the normal 850rpm. But sometimes it will be 750 standing still when warm and 500 coasting when warm (before I sprayed the TB before it would stall as I was coming to a stop sometimes)
When cold it is between 1200 and 1500 but soon drops to around 1100 then it starts spazzing out when warm.
Thanks in advance
PS: I'm aware there are similar threads, but with the random EML complications cropping up on mine it's not entirely similar to other peoples.
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