Engine: 2.3 F/Inj B23E/B230F: - too much fuel

Jan 8th, 2007, 21:48

have 1984 244dl runs way to rich loads up cant keep it running
possible bad coolant temp. sensor ? causing it to dump too much fuel?
any info.would be helpful. thanks kevin

Mike_Brace · Jan 8th, 2007, 23:08

Temp sensor fault will cause it to overfuel on hot start but should start from cold. I presume you have a cat on the car as you are in the USA - this could be bloked causing it to not run.

Miike

bobandcal · Jan 11th, 2007, 16:23

If it is the B23E type fuel system, try checking the the fuel pump relay which are renown for problems, it also sends power to the fuel pressure regulator and auxiliary air valve, if they are not getting a power supply from the relay then they cannot heat up to the correct operating settings, and will stay in cold start possition and supply to much fuel, there should be a 12 volt supply when ignition on in the running position at the square connector on each unit.
good luck,
Bob

Jan 8th, 2007, 21:48	#1
kands52 Guest Location:	too much fuel have 1984 244dl runs way to rich loads up cant keep it running possible bad coolant temp. sensor ? causing it to dump too much fuel? any info.would be helpful. thanks kevin

Jan 8th, 2007, 23:08	#2
Mike_Brace Former contributor Last Online: May 15th, 2024 09:52 Join Date: Dec 2004 Location: Rhosgoch, Anglesey	Temp sensor fault will cause it to overfuel on hot start but should start from cold. I presume you have a cat on the car as you are in the USA - this could be bloked causing it to not run. Miike __________________ A Volvo is for life not just for Christmas!

Jan 11th, 2007, 16:23	#3
bobandcal Volvo - No going back Last Online: Aug 21st, 2023 12:16 Join Date: Dec 2002 Location: RUGBY	To much fuel If it is the B23E type fuel system, try checking the the fuel pump relay which are renown for problems, it also sends power to the fuel pressure regulator and auxiliary air valve, if they are not getting a power supply from the relay then they cannot heat up to the correct operating settings, and will stay in cold start possition and supply to much fuel, there should be a 12 volt supply when ignition on in the running position at the square connector on each unit. good luck, Bob

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