Car stalls when driving...

Car stalls when driving...

Author
Discussion

kelsojo

Original Poster:

2 posts

213 months

Thursday 4th December 2008
quotequote all
I've just bought a 94 civic, when it starts the revs idle at around 1000 rpm everything seems fine. When I'm driving mind, when I dip the clutch the revs take a nose dive towards zero and it sometimes stalls. I'm having to drive now using a heel & toe technique so I can brake and keep the car from stalling. I turned everything off when it was stationary and again revs at 1000 rpm, turn lights on and it drops to 800rpm, aircon on and its down to 500rpm, stereo on and it stalls.

Any idea what the problem is and what the fix is?

Cheers

JK

10 Pence Short

32,880 posts

222 months

Friday 5th December 2008
quotequote all
Sounds like the throttle body is gunged up. An easy and cheap thing to sort.

Uncle John

4,430 posts

196 months

Friday 5th December 2008
quotequote all
As above.

Had this on my 04 2.0 VTEC CRV, cleaned out the throttle bodies and a shot of Redex and it's been fine.

T4-DC2B18C1

15 posts

189 months

Tuesday 9th December 2008
quotequote all
I had the same problem in my 94 LS DC2. It was a five speed. I would say check the throttle body first. But does it only do this in gear and not neutral. It might be your thrust bearing gone bad. That is what mine was. you could actually see the crank moving an 1/8 of an inch and causing the crank to bind stalling the engine. I had to have my crank and mains machined.check for metal shavings in your oil.

odyssey2200

18,650 posts

214 months

Tuesday 9th December 2008
quotequote all
Set the idle up properly

There is a AICV valve which has a blue (iirc ) plug on the throttle body.

Unplug it.

Your engine will almost certailny die.

With all the electrical load OFF locate the idle adjusting screwa and set it to about 750-800 rpm.

Now reconnect the AICV valve and the idle will settle.

The valve opens to compensate for load caused by lights HWR PAS and AC etc.
If it is set up worng it will run out of travel and be unable to save you from a stall.

Also the V-tecs were very sensitive to stalling when hot if te valve clearances had been set a little too tight.

ETA once you have done this the PGMFI light will be on.

Engine off, remove ECU fuse, count to 10 and replace thumbup




Edited by odyssey2200 on Tuesday 9th December 15:52

MB 1

525 posts

190 months

Tuesday 9th December 2008
quotequote all
Could be many things, including a failed lmabda sensor...

CB3

117 posts

189 months

Tuesday 9th December 2008
quotequote all
if those are the problems & nothing else then its your ...
THROTTLE BODY UNIT!
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no questions asked'