Code 43 help
08-05-2004, 04:48 AM
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Code 43 help
Did a search, hope someone can help me out. Hav a built 95 B18B in my 93 del Sol. Primarily when I'm driving on the highway for 40-50 miles, I am getting a CEL code 43.
O2, MAP sensor test good, fuel pressure is at 43psi and goes up when removing vaccuum hose from FPR.
When coming to a stop, idle goes way down, sometimes stalling and then hunts until it settles in around 700 rpm. Have a HKS Super AFR piggy back computer to help take fuel out at idle for the Crower 404 cams (non VTEC).
Fuel injectors seem to be working fine. Could it be a fuel pump going out? Intermittant bad FPR?
Any ideas would be aprreciated.
O2, MAP sensor test good, fuel pressure is at 43psi and goes up when removing vaccuum hose from FPR.
When coming to a stop, idle goes way down, sometimes stalling and then hunts until it settles in around 700 rpm. Have a HKS Super AFR piggy back computer to help take fuel out at idle for the Crower 404 cams (non VTEC).
Fuel injectors seem to be working fine. Could it be a fuel pump going out? Intermittant bad FPR?
Any ideas would be aprreciated.
08-05-2004, 11:10 AM
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Re: Code 43 help (delSolLS)
Replaced FPR- no change. O2 sensor is less than 1 year old. Has new IACV, MAP sensors. TPS sensor checks out. Fuel pressure is 41 psi at idle, 44 psi with vaccuum disconnected.
Removed A/F meter and soldered O2 sensor connection at computer.
Any other suggestions?
Removed A/F meter and soldered O2 sensor connection at computer.
Any other suggestions?
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