A/F meter installation and Bosch O2 sensor location, I got this for christmas. any advice on installation and location of sensor Options

[DRPHIL914]

I have new A/F meter from Summit racing ,
my car is a 75 2.0 d-jet that has SSHE and a Triad dual exhaust

1. where do i put the O2sensor - where to have the guys weld it

2. i think the electrical hook-up is pretty easy, but if anyone has done this and has suggestions or advice before i proceed, please do so!!!

Thanks

Phil

[mrbubblehead]

no, your wideband does have a built in heater. i am using the older analog signal gauge. yours is the new digital signal gauge. but you still may run into the same problem. i made this bad ass heat sink from a copper plate per innovates recommendations and it still threw the error codes. so with the help of one of the guys on the innovate forum, he had me build a time delay circuit. about 30 dollars worth of parts from the electronics wherehouse.

the new digital gauges may have solved the problem already but i guess we'll find out with yours. for whatever reason at start up, our cars electrical system the alternator combined with the current rush from the starter will throw the wideband into an error code.and innovates answer is to build a heat sink and if that doesnt work then to replace the o2 sensor. right.....at 60 bucks a pop. no thank you. so you can build a simple time delay circuit. i have mine set to about 45 seconds.

now after i turn the ignition on, the timer starts its count down. 45 seconds is plenty of time to get the engine started and smoothed out. the the widebands heater function kicks in the the gauges starts metering. problem solved....if you soldering skills are adequate its a piece of cake....of i could build one for you if you need it.

let us know.... im curious to see if you have problems. and more curious to know what your A/F readings are with your fuel injection. you want your A/F to right at 12.7-13.0 at WOT. and cruising speed or 1/3 throttle position to be as lean as you can get it. with very little load, you should aim for 15.1-16.1-17.1 your engine will let you know how lean you can go before it starts protesting. that will yield you best m.p.g. i am carburated and i am getting right at 40 m.p.g. with a perfect 12.8 WOT

you can only get so lean before you start going the other way. what i mean is at some point you will be using more throttle to get the car moving at part throttle and that will start cutting into your mpg. its easy to see it with carburetors cuz you'll be on your mains before you know it. its a balancing act.

good luck and let us know your results.

one more thing....your timing will play a big roll in your tuning. a/f ratio and timing work as a team. its not like you just set your timing then tune the FI to that timing. you will set the timing then tune, reset timing retune and so on till its perfect. thats how you get some serious mileage and performance. i hope your not using a 009 dizzy. you will go in circles if you are.