Intermittant Engine Stall or Not Starting

Your problem could be fuel related but I doubt it is. Atleast a pressure issue. If the pressure should drop down significantly the car would faulter and die. Your problem is electrical in nature. Again it could be the sensors that are mentioned. I would not suggest starting to swap out parts. That is exactly what the shop will do and that is no big deal to me but I bet it would be to your pocket book. How about the check engine light, does it come on and has the system codes been reviewed?

I highly doubt it. The EGR valve will be located on the intake manifold.

That is true about carbon build up, but let's see what the codes are. Now I have not searched for this in a while, but there is a way to read the PGM-F1 codes. I did some searching on the web and this is what I found. I think there is more out there but I couldn't pull it off.

The ECU has a window with 4 LEDS inside. These LEDS are labelled 8, 4, 2 & 1 and you get the code number by adding the numbers up for any that are lit. As well as the numbered lights, the City has a PGM-F1 lamp (in the dash) which may also be lit.

To get the code you need to run the engine and then check the lights BEFORE turning off the ignition.

I believe there is a jumper that can be applied to a terminal which is a loose wire under the dash. Jumpering this terminal will activate the computer and read out the codes in a series of flashing lights.

Code 0: PGM-F1 lit (no other lights up) Control unit failure, short circuit in combination meter. Engine won't start.

Code 1: Shorted or faulty O2 sensor

Code 3: (lights 2 & 1 lit) MAP sensor - disconnected or open / shorted MAP sensor wiring. Poor pick up, engine tends to stall.

Code 5: (lights 4 & 1 lit) Disconnected MAP sensor vacuum line

Code 6: (lights 4 & 2 lit) TW sensor faulty / disconnected / open circuit - Difficult to start when cold

Code 7: (lights 4, 2 & 1 lit) - Throttle sensor - disconnected / open circuit (or incorrectly set when throttle is shut we found when we rebuilt throttle body! Output needs to be 0.48 - 0.52V - you need a high impedance DVM to measure) Poor pick up if not correct.

Code 8: (light 8 lit) TDC sensor - open / shorted wiring or disconnected - irregular idle speed, poor pick up

Code 9: (lights 8 & 1 lit) CYL sensor

PGM-F1 lit and Code 10: (lights 8 & 2) TA sensor - irregular idle when cold

PGM F1 and Code 11: (lights 8, 2 & 1 lit) - IMA sensor (influences mixture richness)

PGM-F1 & Code 13: - in CRX is the PA sensor. I don't believe the City has one - maybe MAP2?

Merry Christmas back to you. You do pretty well with the testing and seem very diligent at getting to the bottom of the problem. Good luck with the job hunt and I hope your 2007 is spectaculark!