Pyzik

Does anyone have a wideband meter installed in their 85 928? Which one and ? Would you recommend getting it installed ?

Mike Frye

I have one. I use the Innovate setup. It's been extremely helpful for doing 'tuning' and checking up on my system. I actually don't keep it on all the time, I had a third bung put on my crossovers for when I want to check something out (ran the wires and leave them behind the glove box). The LH is hooked up to the stock narrow band sensor.

I would like to have a gauge installed all the time but haven't figure out what I'm doing with the console yet.

I'd recommend it, but only if you're going to be doing some kind of modifications.

What prompted this? Are you doing some kind of tuning or custom setup?

davek9

This is the one I use too, I installed the guage where the Ashtray was, the control unit is mounted under the car next to the support rails, wires run through stock O2 hole.

blown 87

If you do not keep the WB O2 sensor powered when the engine is running it will destroy it if left in the pipe.

dprantl

A wbO2 is useful for more than just modified engines. For example, on '84-'88 dual coil engines if one half of the ignition system fails, you will instantly see it on a wbO2 gauge and you will be able to avert setting the car on fire. You may think you could easily notice if the car were running on only 4 cylinders, but there have been some very smart and knowledgeable 928 owners where this passed them by for a dangerous amount of time. It's not so easy to tell while cruising at part throttle when you are only using 40hp or so. The ignition protection relay is on '89+ cars. And yes, if you keep a wbO2 in the exhaust, it always needs to be powered by the control unit, otherwise it will get clogged up very fast.

Dan
'91 928GT S/C 475hp/460lb.ft

RKD in OKC

I put the Innovative in place of the stock O2 on my GTS and use the narrowband output for the LH. I do not have a display. I use it for the Sharkturner.

I had a Zetronix wideband on my 944 Turbo with their LCD display. Previous owner had installed it. Don't think I would have gotten it myself as it is expensive, BUT it was very nice because it also had EGT and Intake Pressure and did data logging. However, it was really just a nuisance when not actually tuning.

z driver 88t

I use one of the old DIY widebands from many years ago before the Innovate came out. I mainly use it on my turbo Z car for tuning, but on the 928 it is really useful for setting and checking the air fule ratio (AFR).

I have an extra bung on the y-pipe. One good use for it was setting my idle mixture by unplugging the regular O2 and using a long 3mm allen wrench to adjust the AFR at idle. Also its useful to take it for a spin and double check the AFR at WOT during open loop operation. At least that's how you can use it on the L-Jet cars. I don't know if the LH cars have the same adjustability for air-fuel mixture.

Other than that it's mainly just an extra diagnostic tool - sometimes it helps to figure out why a car might be acting a certain way if you know it's rich or lean. I don't leave it on the car. Its defintely the kind of thing I use maybe once a year at the most on the 928.

Pyzik

I'm interested in getting one as my afr needs to be adjusted and would like to monitor whats going on in engine ...

kevinlieb

I had the innovate wideband o2 in another car and it worked well. I somehow blew one up (probably toasted the controller) and they were quick and accommodating in sending me a replacement under warranty. As it has been mentioned you need to keep them powered all the time. I think I had the autometer wideband gauge with it. It has both serial output (for pc logging) and the output required by this meter.

PorKen

I've been using an Innovate LC-1. Nice to have, but annoying when it goes into error mode, EG. overheating. Doesn't automatically reset, and you have to keep the power off for at least a few seconds to properly reset it, or it goes into another error mode.

Best to have a narrow band for the LH.

I like the new Innovate digital gauge with controller built in. Has a small connector, too, which fits through the O2 sensor hole in the body.

blown 87

Where have you got it mounted to over heat?
Neither of mine have ever had that error code.

PorKen

In a balance pipe on an X-pipe (HeX-pipe).

IcemanG17

On a near stock engine, which it appears you have.....why bother............................ Spend a bunch of $$$ to see how the factory O2 sensor works and changes things....it seems like a waste of $$$ to me...

Of course a modified engine or boosted engine needs one.....but on anything near stock.....spend the $$$ on something that matters.....WB02 is a specific tool with certain needs.....a near stock street car doesn't need one...since the failure mode of a stock 02 is to go rich....which is on the "safe" side of things anyway...

blown 87

I see about as many go lean as rich when they start to switch VERY slowly.

Ken, I would move your WB to one side or the other.

dprantl

What if the MAF gets too far out of calibration? What if ignition wires go bad? What if a coil goes bad? Or just a coil wire? Or it just rubs on something and shorts out? Distributor cap? What if one or more injectors stick? What if the fuel pump starts to go? What if the fuel filter starts getting clogged because of a couple of bad tanks of gas? What if the TempII sensor starts failing? Wiring shorts? I wonder if the guy who just recently had a fire because of the car running too rich would have paid $300 or less to install a wbO2...

Similarly, why not delete the coolant temp gauge? To have it just to see how a properly functioning cooling system keeps the water at the correct temperature all the time... useless.

Dan
'91 928GT S/C 475hp/460lb.ft