Imo000

I have been too but this year I borowed one and it really is a neat little tool that mkes the cam adjustment a breeze! Try one if you can.

PorKen

You can disable decelleration injector cutoff with your stock chip! It's programmed into all the 928 LH chips, 32V and 16V. It's switched by an unwired input terminal, pin #15. Ground this pin, and there is no injector cutoff. (It can be switched on/off while running.) On other LH2.2 equipped cars (SAAB, Volvo) pin #15 is used for a coding plug to indicate automatic transmission.

On my 'racing' chipset, I disabled the cutoff in the code. This freed up codespace, and an input, for a dual rev-limit, no-lift-shift clutch switch input.

On a 16V LHs, the LH 'octane loop' plugs (pic) are not used in the code (changes the O2 loop behaviour slightly on 32V). An easy way then to switch the fuel cutoff would be to move pin #19 to #15.

More info:
32V, 16V EZF, LH pinouts: (New EZF LH22 pinouts )
Disassembling the ECU connector, getting more power out of the EZF: (Tweaking EZF part deux)

tilac999

Fascinating! Can't wait to try it. So I just switch the pins #19 to #15 and visa versa? Sounds too good to be true. Thanks Porken!

PorKen

Now that you mention it, not having seen one, I'm not sure if ROW cars have the 'octane loop' on the LH side. It may still be factory electrical taped to the harness if it is there.

If you have it, move the pin, and plug the connectors together to disable the fuel cutoff. (Don't plug the EZF green wire connectors together! That retards ignition timing.) See the link above about disassembling the connector.

John Speake

Euros only have the EZ-F octane loop connectors

Mrmerlin

Update ... Ken sent me a new set of of chips to replace the last set these have more advance .
A freebie Update, and i send back the old chips.

There is now even more power that can be felt in the seat, and the engine revs quicker and feels more powerful over 4K
thanks Ken

anonymousagain

Ken - perhaps a silly question, but the tweaks in EZ-F part 1 and deux are already included in the 300 chip profile, yes?

Is there any further tweaking to consider with the 300 chips, other than going to the racing version?

[want to make sure I'm getting the most out of mine ]

Mrmerlin

Got a chance to drive the car again it is a rocking ride now
With the throttle pressed down at low RPMs it just keeps pulling hard all the way to redline.
Ken this is such a transformation of over the stock chips, I wish my 88 would pull like this, Thanks again, Stan

Mike Frye

Stan,

I know the difference is amazing. You should try the 'racer' chips with the non-resistor plugs. The only requirement is that you commit to using 91 octane or better but you'll feel an even bigger difference in the driving.

My car cranked 322 ft/lbs rwtq two weeks ago and that was with v1.0, now I've got v1.1 and there's a noticeable difference between even these tunes. I'll be getting back to the dyno soon.

The man is a genius.

PorKen

Technically, there's less retard.

I had been too conservative with the air temp retard (actually my own custom air temp by load) map with the 2.x chipset.

Yes. You have a 1.x version of the chips, IIRC. (I'm in CA, so I can't look it up.) There have been some improvements.

Speaking of the big gap plugs. I fixed my odometer before leaving for SF10. On the flat I5 corridor at a constant CA 70 mph, I'm getting 25.5+ (maybe 26 if you discount some canyon driving thrown in, '85 5-speed). 400 miles with 15.x gallons is just weird.

risc

where can i get the chips from?

GlennD

To get the chips, go directly to Ken's site

http://liftbars.com/

You will see the menu on the left hand side. Lots of useful goodies.
In my opinion, if you are going to get the chips, you may as well get the Blinkr to help set the mixture. Changing out the FPR (as required to get the benefit of these chips) may change your mixture and the Blinkr will help you get it where it should be.

Great writeups on the site to help you better understand the procedure. When I installed the chips and the associated fuel pressure regulator, it was a great time to refresh the rest of the fuel system - new dampers, new fuel lines, vacuum hose refresh (since you are back there anyways), etc.

Good luck
Glenn

Mrmerlin

Ken can i move pin 19 to 15 and ground out pin 15 on the LH to give me a slower throttle return,
With these new chips??

risc

Hey GlennD, i don't see my year on the web page link you said to go to get it. I have a 88 S4.

Hilton

Ken's chips are for the 85/86 32V cars.. with an S4 your best option for chips is to fit 24lb injectors and get your car sharktune'd.

Before that, best $/hp is to get a Motorsport X-pipe (from SLC Motorsport - also sold by 928srus.com).