Haltech A/F gauge with Haltech
04-29-02, 10:49 PM
#1
Gone Darkside
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A/F gauge with Haltech
I tried wiring my Autometer A/F gauge and my Haltech into the single wire O2 sensor last night. As soon as I turned the key, the gauge lit up the center stoich light (not normal behavior), and the Haltech locked in at something like 492 or 500mV.
What gives? Is there a special way you have to wire both of these so they will both work correctly?
This is on n 88 10th AE.
What gives? Is there a special way you have to wire both of these so they will both work correctly?
This is on n 88 10th AE.
04-30-02, 03:51 PM
#2
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Re: A/F gauge with Haltech
Originally posted by NOTA944
I tried wiring my Autometer A/F gauge and my Haltech into the single wire O2 sensor last night. As soon as I turned the key, the gauge lit up the center stoich light (not normal behavior), and the Haltech locked in at something like 492 or 500mV.
I tried wiring my Autometer A/F gauge and my Haltech into the single wire O2 sensor last night. As soon as I turned the key, the gauge lit up the center stoich light (not normal behavior), and the Haltech locked in at something like 492 or 500mV.
I'm having the EXACT same problem but with my Nordskog AF. If I just hook up the Haltech it'll still read 492-495 mv so I know it's not my AF guage. If I ground the Haltech lead it goes to 4mv?? I've bought a new O2 sensor and even grounded the sensor straight to the battery to test it with no luck. I think it's something internal to my(and yours) Haltech, unless somebody can show me different.
One option I haven't tried is that somehow the harness is wrong. The roadspeed sensor is also gray and sheided but with a different internal wire color. Problem is that when I ground my O2 Haltech wire, it drops the Haltech O2 reading so I'm pretty sure I have the right wire. I'll have to unwrap my whole harness to find the road speed wire now.
I may play with my grounds. I have 8guage running to the harness ground from the battery. I ran an 8 guage ground from the engine to the firewall. I grounded the other Haltech ground wire with the ring terminal to the floorboard near the ECU. I didn't cut this one either so it's kind of coiled up. Maybe I'm getting some weird ground loop??
Are your grounds similar to mine?
I have an AE too(see my avatar).
Scott
05-09-02, 01:02 PM
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I was talking with someone about hooking up O2 sensors last month and they had to use the Spare A/D for datalogging. Sounds like you guys are using Narrow band sensors which are pretty much useless.
05-10-02, 09:16 AM
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Not entirely useless. I'd like to know if I'm going the right direction and see it on the datalog. My problem must be internal to my Haltech. It's probably not worth the trouble of pulling it out and sending it in to be repaired.
Mine's running really well anyway and I have a dyno day next week with the wideband to see how close I am.
Scott
Mine's running really well anyway and I have a dyno day next week with the wideband to see how close I am.
Scott
Originally posted by Styk33
I was talking with someone about hooking up O2 sensors last month and they had to use the Spare A/D for datalogging. Sounds like you guys are using Narrow band sensors which are pretty much useless.
I was talking with someone about hooking up O2 sensors last month and they had to use the Spare A/D for datalogging. Sounds like you guys are using Narrow band sensors which are pretty much useless.
