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Old Aug 25, 2005 | 04:57 PM
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Default DJ wideband question

ok I hooked up to the tach wire on my 98 ta which is supposed to be the white wire on pin 35 on the blue connector on 98 cars only. I did this and the tach jumps eraticly and doesnt rev right with the car when i watch it on the laptop. Ive go the tps hooked up and working right. anyone have any ideas?
thanks in advance, jason
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Old Aug 26, 2005 | 09:44 PM
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I have FJO's wideband, and my RPM was always off... they have a RPM multiplier, and I had to do multiply it by 1/2... (apparently contrary to most V-8s 'cause LS1s need to be different) ANYWAY, after that, the RPMs were dead on.

-somebody
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Old Aug 26, 2005 | 10:18 PM
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^^^ yup.. the LS1s operate on 2 pulses per rotation .... so you need to set them up as a 4 cylinder (same thing if you're installing an MSD Window Switch)
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Old Aug 26, 2005 | 10:59 PM
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they told me to set it up as 1 if it has coil packs and the number of cylinders if you have a distributer. it is closest if I set it at 1 and gets further off as I go up i tried them all 1 thru 8. it is usually about right at idle though I guess Ill just have to play with it for a while I was just hoping I would find someone that had the same problem.
thanks
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