Engine: 2.3 F/Inj B23E/B230F: - B230et

POLAR971 · Nov 26th, 2020, 12:52

Hi, have a 240 volvo 1991 polar swap on B230et (from a 740 1989) i got Bosch motronic.

I have a turbo more big, regulator pressure, and drift configuration...

The car have a electrical problems , sometimes de pump fuse (6) blow up, and the pump relay not work like ussually.

Now, the pump relay not activate the pump... i have a doble installation and the pump goes run ok.The car starts, and accelerate, and go to down and up RPM.

I changed the IAC, and nothing... If i desconect the TPS, the car accelerate, it is normal, i believe the tps its ok.

I checked for a air lick but i dont see nothing...

Not smoke, nothing, only goes up and down the rpm and if i press acelerate go ok but always the rpm up and down...

thakssssssss any ideas?

classicswede · Nov 27th, 2020, 18:03

Sounds like typical air flow meter problem or air leak issue.

Btw with the ET engine the rods are very week. If not done already fit stronger rods

POLAR971 · Nov 28th, 2020, 19:00

Quote:

Originally Posted by classicswede

Sounds like typical air flow meter problem or air leak issue.

Btw with the ET engine the rods are very week. If not done already fit stronger rods

Thanks, tomorrow i`ll clean the MAF.

POLAR971 · Dec 8th, 2020, 10:11

Hi, i pushed the tube from de IAC to the admission and the car was good, i think my IAC is good, but not 12v in... somebody knows the wiring correct? motronic? becouse in the HAYNEYS say,,, not especifications hahaha

Nov 26th, 2020, 12:52	#1
POLAR971 New Member Last Online: Feb 6th, 2024 12:24 Join Date: Nov 2020 Location: Ariany	B230et Hi, have a 240 volvo 1991 polar swap on B230et (from a 740 1989) i got Bosch motronic. I have a turbo more big, regulator pressure, and drift configuration... The car have a electrical problems , sometimes de pump fuse (6) blow up, and the pump relay not work like ussually. Now, the pump relay not activate the pump... i have a doble installation and the pump goes run ok.The car starts, and accelerate, and go to down and up RPM. I changed the IAC, and nothing... If i desconect the TPS, the car accelerate, it is normal, i believe the tps its ok. I checked for a air lick but i dont see nothing... Not smoke, nothing, only goes up and down the rpm and if i press acelerate go ok but always the rpm up and down... thakssssssss any ideas?

Nov 27th, 2020, 18:03	#2
classicswede Trader Volvo in my veins Last Online: Today 17:58 Join Date: Dec 2004 Location: Anglesey	Sounds like typical air flow meter problem or air leak issue. Btw with the ET engine the rods are very week. If not done already fit stronger rods __________________ http://www.classicswede.org www.classicswede.co.uk

Dec 8th, 2020, 10:11	#4
POLAR971 New Member Last Online: Feb 6th, 2024 12:24 Join Date: Nov 2020 Location: Ariany	Hi, i pushed the tube from de IAC to the admission and the car was good, i think my IAC is good, but not 12v in... somebody knows the wiring correct? motronic? becouse in the HAYNEYS say,,, not especifications hahaha

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