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calaisturbo.com.au - Plz help with cold idle problem!!

Started by Counterpoint · 27 Apr 2005 · 14 replies

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CounterpointArchived member
Sorry guys, i know this type of threads been done but I�m struggling to find any with the same symptoms as mine... Here�s the problem - It only does it when its stone cold(morning or sitting for a few hrs). I start it up and instantly it struggles to run and idles at a rough 550, and as soon as i look like touching the accelerator it stalls. The only way I can avoid the problem is by letting it warm up for 15mins or so or by being incredibly easy with the accelerator� any ideas?? Some original photos have not been recovered yet.
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boostncalaisArchived member
Is ur car outside all night in the cold then runs **** when u crank it over? If so try put it inside the garage overnight so it stays warm..
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CounterpointArchived member
na this isnt the problem its often garaged...
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USHArchived member
mine use to idle at cold ok, but die off when you went to drive away, to the point of almost stalling, which wasnt the best. I checked my AFM and it was at 12ohm , i wound it round to 382ohm and havnt had a problem since, maybe thats something you could check?? Also when my 1st AFM died the car would idle at about 500rpm (like bounce off the bottom of the taco) and if u gave it a bit, it would die. To see if it is the AFM, squeeze the fuel return line with a pair of pliers and get someone to turn the car over, if it runs well then, ur AFM is stuffed (taught by RACV roadside on that one) i dunno, something to think about there... ush Some original photos have not been recovered yet.
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CounterpointArchived member
thx, thats a new idea ill give that a shot soon
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Munro-Archived member
I had something similar recently. From your air intake to the back of breather hole on your engine. Is that piping shagged? Because if it is, that will make your car run like ****.
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CounterpointArchived member
na its still in good condition, im convinced its something electrical
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CounterpointArchived member
IVE FIXED THE PROBLEM!! Hope thsi can help someone else... What was causing the problem was the throttle position sensor, it has been moved from its original position and was giving the ecu a faulse reading of the throttles true position. Now that ive re-set it the cars running better then ever and not a single hiccup!
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BealzyArchived member
Quote: Originally Posted by VL Exec87 IVE FIXED THE PROBLEM!! Hope thsi can help someone else... What was causing the problem was the throttle position sensor, it has been moved from its original position and was giving the ecu a faulse reading of the throttles true position. Now that ive re-set it the cars running better then ever and not a single hiccup! nice one bruz
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daniel_mcArchived member
might sound like a completely stupid question, but what is an AFM? i have the exact same problem with cold starts.. any help guys
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MickNQArchived member
could be the temp sensor connector or the sensor itself as well, this problem caused me grief for a little while, found that when pushing the connector on to the sensor, the actual connections in the plug were pushing back and not seating on the sensor.
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HingoArchived member
Quote: Originally Posted by VL Exec87 IVE FIXED THE PROBLEM!! Hope thsi can help someone else... What was causing the problem was the throttle position sensor, it has been moved from its original position and was giving the ecu a faulse reading of the throttles true position. Now that ive re-set it the cars running better then ever and not a single hiccup! How did you do this? Can you explain please? Also, when checking the AFM with the multimeter, you still the 2 prongs on the last 2 pins on the afm? (on the pipe) or the plug? (that plugs into the pipe)
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CounterpointArchived member
To fix the problem i simply decided to start playing with things untill i got some sort of effect... The TPS is the little black think mounted on the side of the throttle body, it has 2 sets of wires comming out of it. After undoing the top and bottem screws on the TPS and turning the top towards the passanger side (only moved it about 2mm) i noticed it wasnt so bad so i gave it a little more of a turn at now its all sweet! But this most likely will effect the timing of your gear changes and how smooth they are... And to measure the AFM you put the multimeter on the far left and right pins that come out of its plug, but i wouldnt be moving that around to much... Ive actually reduced its resistance to increase my fuel consumption and i havent lost any noticable power... doesnt blow as much black **** onto the exhaust tip either!
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HingoArchived member
ta mate...
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JuZiArchived member
reducing the resistance would increase the fuel consumption, but why would you want to do that? was it running lean b4? plus it would make more black **** from the excess unburnt fuel from running it rich. did you find that turning the tps upwards makes the car rev more or less b4 changing gears? i would like to adjust mine a bit also to get rid of the shakes from take-off but if it makes the engine rev out more i wouldnt want to do it
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