Running wideband controller ONLY when engine is on?
Moderators: jsmcortina, muythaibxr
Running wideband controller ONLY when engine is on?
What's the best way of doing this? Running via fuel or efi relay or using some of the outputs from the ms2?
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Re: Running wideband controller ONLY when engine is on?
FWIW....... I prefer using the Fuel pump relay for that purpose.......
Ken
Ken
1979 Corvette - 383 CID SBC w/ Holley Pro-Jection 900 CFM TBI, 4-85 lb lo-z injectors & Walbro 255 pump
MS2 v3 w/extra 3.4.2 Release
36-1, Delphi LS2/7 coils in wasted spark, driven by v2.0 logic board from JBPerformance
Spartan Lambda Sensor from 14point7
TinyIOX from JBPerformance
MS2 v3 w/extra 3.4.2 Release
36-1, Delphi LS2/7 coils in wasted spark, driven by v2.0 logic board from JBPerformance
Spartan Lambda Sensor from 14point7
TinyIOX from JBPerformance
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- Super MS/Extra'er
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Re: Running wideband controller ONLY when engine is on?
I power them off the fuel pump relay
Re: Running wideband controller ONLY when engine is on?
I used the radio 12v switch power.
1985 Dodge Omni GLH Turbo MicroSquirted 367whp http://www.msextra.com/forums/viewtopic ... 04&t=67324
Re: Running wideband controller ONLY when engine is on?
But what about fuel pump priming? Will it hurt it by going on and off shortly?
Kind of paranoid after I killed my sensor
Sent fra min HUAWEI VNS-L31 via Tapatalk
Kind of paranoid after I killed my sensor
Sent fra min HUAWEI VNS-L31 via Tapatalk
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Re: Running wideband controller ONLY when engine is on?
This is what Innovate suggests which still allows communicating with their controller with the ignition on.
If you wire it to the fuel pump relay, it will turn off in a few seconds if you don't start the engine.
If you wire it to the fuel pump relay, it will turn off in a few seconds if you don't start the engine.
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- Innovate Device Relay Wiring.jpg (36.41 KiB) Viewed 483 times
1988 Mustang GT, 59k miles, Orig Owner
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
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Re: Running wideband controller ONLY when engine is on?
Possible interesting article about (short) 02-sensor life from Bosch;
http://www.nzefi.com/bosch-lsu-wide-ban ... lications/
http://www.nzefi.com/bosch-lsu-wide-ban ... lications/
Daily driver: 1973 Dodge Dart - 360ci engine - 11.3:1cr - MS3x - ignition only. 42RH/A500 OD+LU transmission / 3.23 gears
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Re: Running wideband controller ONLY when engine is on?
This how mine is connected, the problem is it allows the sensor to be heated even if the engine is cold, say you're fiddling with something like setting up your efi system or troubleshooting something which requires ign=on. Then when you start it condensation hits your warmed up sensor and it gets thermal shock like mentioned in the article big block posted.Blown88GT wrote:This is what Innovate suggests which still allows communicating with their controller with the ignition on.
If you wire it to the fuel pump relay, it will turn off in a few seconds if you don't start the engine.
I'm pretty sure this is why mine died now, that and contamination from running too rich for a while...
Yeah I ticked most of the boxes in that article unfortunately, trying to make it right this time...BigBlockMopar wrote:Possible interesting article about (short) 02-sensor life from Bosch;
http://www.nzefi.com/bosch-lsu-wide-ban ... lications/
I know there are time delay relays available so if you use one like that you can avoid it turning on with the fuel pump priming.
But I guess you could use an output from the ecu also?
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Re: Running wideband controller ONLY when engine is on?
It's an issue with my rather old Tech Edge. The display goes off and reads 'nd' if you switch it off and on again quickly - as with the fuel pump priming pulse.Spiffy wrote:But what about fuel pump priming? Will it hurt it by going on and off shortly?
Kind of paranoid after I killed my sensor
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So mine is simply powered by the main relay and must be pushing 10 years old by now. But then I don't tend to leave the ignition on without starting the engine.
Rover SD1 3.5 EFI
MS2 V3
EDIS
Tech Edge O2
London UK.
MS2 V3
EDIS
Tech Edge O2
London UK.