ivan06106

I drive a supercharged 03 Acura Cl s m/t. Yesterday while driving back home from work car shutts off on me. I turned the car back on an it shut off again,then after that it turned of fine,but idk if my ignition switch it's going bad or I have a vacuum leak. Any help would be appreciated. Thanks

zeta

iTrader: (1)

In the 7 years/90K miles I have had the S/C'er, the engine suspiciously quit two times. During both of those times, I would be coming off a prolonged cruise at highway speed (75-80mph) decelerating/downshifting down an off-ramp of a highway. As I would downshift to third gear, approaching a stoplight intersection, I would push the clutch in, drop the tranny in neutral, the rpms would drop and the engine would stall. It would be very apparent that the engine would stall because I would still be rolling and could feel the power steering get tough to handle as I stopped. However, upon coming to a full stop, the car would fire-up with no further problems thereafter. It has happened so infrequently, that I can't recall the particular dates.

It may be the items you suspect above and/or you may want to check the fuel relay switch if the car has been in the heat as well.

Good Luck.

StreetKA

iTrader: (8)

fuel pump ?

ivan06106

Ignition switch was the problem

yungone501

iTrader: (4)

^^^
Was going to suggest that or EFI relay. There's a recall on these suckers and mine has been replaced twice in 30k miles!

ivan06106

whats that EFI Realy ? Car was running fine for 4 days till today problem started again.

zeta

iTrader: (1)

^

https://acurazine.com/forums/2g-cl-problems-fixes-70/fuel-pump-relay-problem-495108/

ivan06106

i found out what i was an I replaced it, yesterday was drving afte rI put the new relay on, then this morning on my way to work it shutt off on me twice coming to a stop.

CL-Future

I actually had the same problem and after extensive troubleshooting and part replacing it turned out to be the Comptech ESM. The voltage on it was pretty low and after replacing it, it hasn't stalled once. Definitely one of the more frustrating car problems I've had because it wasn't the first thing that came to mind. If it comes back, you may want to check the voltage on the esm.

ivan06106

how can i check it ? an do i have to buy another one ? or can i changed the voltage on it ?

zeta

iTrader: (1)

CL-S 6 speed
ESM Unit V6 - preset to 2.9 v
Part#340-050

Post #4 on the thread below gives an idea on how to adjust:

https://acurazine.com/forums/showthr...mptech+voltage

TypeIIGhost

My car was shutting off coming to stops too couldnt figure it out still havent, Out of the blue it just stopped doing it so wierd.Still worries me.

ivan06106

I came to find out that it was my idle air control valve that was bad. Did your check engine light came up ?

poisx7

iTrader: (1)

u right.
from my experience its either the fuel pump relay or the IACV.

when they start to go bad:

THE Fuel pump relay generally acts up in hot weather/sunny hot day while the IACV acts up in cold weather or at low rpm especially when the car is not warmed/up to running temp