kim_performance

I have a 1998 Honda CRV ES, i am having a problem with the idle when the car is cold. It starts just fine and idles fine until i go to put it in gear (its an automatic) and then it stalls or sometimes just almost stalls. This problem goes away once its warmed up.And when stalls its hard to start again. Any idea what my problem might be?

PhilStubbs

How did the problem come about? Just out of the blue one day or progressively get worse? Have you done any work to it recently? Even if it's brake pads or something that seems unrelated.

FeedBack159

mine will do that if i start it and instantly throw it into drive when its like 0 degrees out. its just cold.

kim_performance

the problem only occurs when the engine is cold, I changed IACV cleaned throttle body and the same problem. 3 months ago I bought the car with this problem. I do not know what to do. I read somewhere that the valves should be adjusted ...

dogbiscuit

Don't automatics have a FITV (fast idle thermo valve) for when they are cold? It takes the place of the IACV until the vehicle is warm.

Here's a thread to clean it up https://honda-tech.com/forums/acura-integra-6/%2A%2A%2A-how-%2A%2A%2A-clean-your-fitv-aka-fast-idle-thermo-valve-1564019/

I checked the blowup of the automatics throttle body and here's the valve on a 98 crv It's #12 in the diagram http://www.hondaautomotiveparts.com/...3s1001_e01.png

Also make sure your coolant is properly bled if you removed the IACV.

Also it's a great idea to adjust your valves if you know how to. if not it's still a great idea to pay someone to do it.

kim_performance

thank you very much. Tomorrow morning I will try to do this .. hope to fix the problem because I heard 1,000 other alternatives that I have tried and does not work. you think is necessary and an idle learning??

honvol

what is the engine's rpm when the engine starts running when then the engine is cold? it has to be around 1850 rpm when it just starts running. the system has several ways to pull up the iddle so the engine would not stall. airco switch, alternator switch,brakeswitch , gearbox switch. the ecu pulls up the iddle when you apply one of these switches . Did not found the gearbox switch because i don't have the shop manual for automatic gearbox because i have a manual gearbox.

kim_performance

Tell me please, would need to screw all the way or you can adjust depending on how sitting idle speed

honvol

whats this?

dogbiscuit

I can't attest to adjusting your FITV. I've only ever dealt with manual transmission hondas and this is solely a automatic part. I would just try following that guide in the thread i posted

honvol

even a 1997 model with a manual gearbox has a FITVvalve but i never took it apart so i didn't recognised it on the picture.To test the valve: take off the tube just before the throttle and start the cold engine .There is a hole in before the throttle.It has to suck air trough the hole.if it does the FITV valve is ok. Once the engine temp is ok ( cooling fan works at least once) theire is no more air sucking through that hole.
The FITV valve is set by teh manufacturer so taking it apart is not a good idea .

kim_performance

you tell me to check the fuse? or what gearbox switch, that the shifter lever?

kim_performance

on the gearbox are two solenoids. may be a problem there?

honvol

i didn't mention a fuse !! i think that the switch can be in the shifter lever but as i tould you i don't have the shop manual (yet) for the automatic gearbox.

pogeeboy27

iTrader: (3)

My ex's CRV had the same exact symptom you described. Try the valve adjustment. It worked for her car.

kim_performance

ok, after trying the IACV, FITV, idle speed, spark plugs. It is time to adjust the valves, intake 0.10 mm, 0.18 mm exhaust. Intake valves we have adjusted successfully but the exhaust have a very big problem, I opened up the screw to maximum, and the distance between the valve and camshaft was less than 0.03 mm. This problem exists at 6 of the 8 exhaust valves. With a cold engine I did a compression test and was disastrous results registered between 50 and 65 psi.
2 days ago I did the same test but with the engine warmed up and the result was 159-163 psi. I think the exhaust valves are not 100% closed and lose much compression when engine is cold. I must say that I bought the car 3 months ago, the problem was there and the car has lpg installation. the fuel consumption was to high and the power ...low.

Since I could not adjust the exhaust valves ... I decided to take off the cylinder head and check the problem. I will return tomorrow with details.

woodstock66

i have a2000 crv it starts at fast idle/accelerator then stops running instead of idle... it coincided with cold weather.,, so i changed fuel filter ...same symptoms starts first thing in morning,wont stay running without accelerator pressure, won't restart..