idle problem, pic inside
#1
Rotary Spirit
Thread Starter
idle problem, pic inside
i have 86 GXL manual, the previous owner had the emission eliminated, electric fan on radiator, everything else are stock, has 84k miles.
it idle up and down from 500 to 1500, once i unplug this white clip(shown in picture), it idles normal, which is 750 rpm, so i drive her with this clip unplug.
it drives normal, the only thing is, it will die on me while i have the A/C on and the water temp is higher than the normal temp, which the niddle points at the middle at water temp gage.
anyone know what cause my idle rough? i had been tried so many different solutions, such clean IACV, change the whole throttle body, checked vacuumm leak, no vacuum leak.
thanks for reading. and sorry about my english. :P
http://www.flickr.com/photos/23732694@N03/4561706961/
it idle up and down from 500 to 1500, once i unplug this white clip(shown in picture), it idles normal, which is 750 rpm, so i drive her with this clip unplug.
it drives normal, the only thing is, it will die on me while i have the A/C on and the water temp is higher than the normal temp, which the niddle points at the middle at water temp gage.
anyone know what cause my idle rough? i had been tried so many different solutions, such clean IACV, change the whole throttle body, checked vacuumm leak, no vacuum leak.
thanks for reading. and sorry about my english. :P
http://www.flickr.com/photos/23732694@N03/4561706961/
#2
Moderator
iTrader: (1)
The plug you have disconnected belongs to the Air Bypass valve which is used for the 3000 rpm startup which lasts for 17 seconds so it's not really vital to have it hooked up. With regards to the car dieing out that would be related to the BAC. While cleaning it is good it still might not be performing up to spec. If you were to slow down the speed of the fan as you come to a complete stop does that help to prevent the car from stalling and does the car always stall with the A/C on whether the car is warmed up or not? If worst comes to worst you might want to bump up the idle a bit to see if this helps at all.
#3
Rotary Spirit
Thread Starter
if it gets real hot outside and i have the a/c on, the water temp would slowly raise close to mid range of the temp gage. mean while if the car come to idle, it will drop to 2-300 rpm then engine dies on me, i notice if the water temp gets high, and i dont turn off the a/c, the engine is kinda like lack of power to run the compressor. once the engine shuts down, i have to turn a/c off and restart engine, drive it with a/c off, the temp will then slowly drop.
should i get a better radiator, something like toyo, and set the idle rmp higher, to like 8-850 rpm?
should i get a better radiator, something like toyo, and set the idle rmp higher, to like 8-850 rpm?
#4
Moderator
iTrader: (1)
if it gets real hot outside and i have the a/c on, the water temp would slowly raise close to mid range of the temp gage. mean while if the car come to idle, it will drop to 2-300 rpm then engine dies on me, i notice if the water temp gets high, and i dont turn off the a/c, the engine is kinda like lack of power to run the compressor. once the engine shuts down, i have to turn a/c off and restart engine, drive it with a/c off, the temp will then slowly drop.
should i get a better radiator, something like toyo, and set the idle rmp higher, to like 8-850 rpm?
should i get a better radiator, something like toyo, and set the idle rmp higher, to like 8-850 rpm?
#5
MECP Certified Installer
My old engine started to overheat when i ran the A/C because it had a very tiny coolant seal leak. After 155k miles, the seals themselves where fine, but I had 3 cracks into the cooling jackets of the front iron. My A/C has freon in it, but is a bit low so I haven't ran it since I got my new engine, since I don't want to risk overheating. Brand new rad and thermostat.
I'd check for coolant abnormalities. Bubbles and air pockets are NOT good. A good running engine with the system free of air should not bubble or "plop" bubbles at all. At idle, with a funnel in the radiator caps place, should get hot enough to steam up a bit, but no perturbations should occur.
I'd check for coolant abnormalities. Bubbles and air pockets are NOT good. A good running engine with the system free of air should not bubble or "plop" bubbles at all. At idle, with a funnel in the radiator caps place, should get hot enough to steam up a bit, but no perturbations should occur.
#6
Rotary Spirit
Thread Starter
if i turn a/c on, idle stable at about 1500 rmp instead of rev up and down, i just remember that i had this tested couple months ago, not sure if still doing the same thing now, will check when i get home.
#7
Rotary Spirit
Thread Starter
and this white clip does not directly connect to the IACV(part#N326), its wire leads down to the throttle chamber. BAV = IACV(part#N326)? cuz IACV(part#N326) has blue plug.
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