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When the car is started from cold, I don't get the high tickover
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I suspect the idle control valve possibly
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Anyone know how I could fix this? many thanks.
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jon wrote:If replacing the coolant temperature sensor doesn't do the trick, may I suggest investing a tenner in a multimeter?
The BGB describes how to check most sensors in detail, the lambda/O2 sensor and throttle position sensor are pretty easy to check.
I hate to think how much replacing 4 or 5 sensors would cost at Toyota prices!
Cheers,
Jon
Sounds like you've got it sussed out!, the BGB is the service manual for the MR2, the American version will do job, it's available online:Frank Grimes wrote: I took your advice and splashed out on a multimeter...Slightly confused by the sheer number of stuff on the dial :scratch: but i'm pretty technically minded, so i'll give it a bash. On the 'Ohm' section of the multimeter I can choose between 2m, 200k, 200 & 2 (I think). Now, as the resistance of the water temp sensor is about 4-10 cold, I imagine I set the dial to '20' (as 4-10 is more than '2') then connect the red and black leads to each one of the contacts on the sensor and see what it says?
The 'BGB' - is that that American manual that covered early turbo's? I think i've got that on CD somewhere is PDF format...
allan welsh wrote:yeah N plate is full CAT test.With the CAT in place it should not be anything like that CO value at idle.
What was the HC at idle?
timecorp1 wrote:I had a similar problem last year- my CO2 was something like 5.0+
I have a de-catted M-reg rev 3 but according to Rogue the date of registration is about 1 month too new to be able to go through the MOT on the'non-cat test'
I asked my local MOT station to put my CAT back on the car for the MOT, but when they realised how difficult a job it was they decided against it, passed the MOT anyway and said I owe them a beer!
Recently the car overheated(which turned out to be due to a slight leak in the coolant).
I have replaced the coolant and bled the air out properly after sealing the system with radweld.
When the car overheated initially I called out the RAC- I chatted about the car with the mechanic for a while and he said that the car shouldn't be putting out such high CO2 even without a cat.
He also said that he thought the car was
'running on choke' all of the time or something like that.
My MOT is due end of april and really wanted to get it sorted properly this year.I was also considering a re-map of the ECU this year as well
- will this help the situation or help uncover any underlying problems?!