I'm pretty sure the harness is a 91 everything in the engine bay as far as connectors are 91 but if theirs a way to check for sure let me know I can do it now if needed I'm 90% sure this ecu was modified for a 90 car as it's what yr car it came out of but the tach works fine didn't have to do anything woth the coil either because my mgi and coil are all 91 style. As far as dead times for injectors I changed them to get the idle afr around 14.7 as they were very rich when set to ecm link wiki suggested to start at I'm about 160 counts off from the but figured I am having other issues that's causing it to be so far off the nb o2 I reused the old one from the stock motor seeing I didn't thinon their was any issues with it until I started logging but my guess is it hasn't been cycling this entire time..keep in mind all these issues started when I installed the ecu so the idea the pins need swapped is catching my attention here.. I wondering of the idle switch isn't activating because ecu can't read it could that possibly cause the o2 to stick at .20v?

Mine does this same thing.. i know i have my idle switch enabled through link and simulated.

Looking at link now my idlesw is at 0 and stays their doesn't move when I hit the peddle

Well I switched pin 6 & 14 and it was working fine had a 1 on idle and 0 on throttle when I let off it didn't sputter ornanything for about 5 miles or so then red just 0 again.. hopfully switch is acting up or somthing.. I'm also noticing my tps keeps changing voltage I adjusted it a few times last time I did was tb off and it was perfect I tightened it down good and was good till I started driving a bit and noticed it moved Soni adjusted it with link when I shut car off it went back half as much and now keeps changing alot I was driving for awhile and it read .67 at 1% after I already adjusted with link so I hit gas a few times it went back to 0 at .65 1 time then I hit it again to doubble ck it and back .67 at 1% so I adjusted it again with link... any idea if it could be a bad tps or anything?

911gdsmboostin said:

Well I switched pin 6 & 14 and it was working fine had a 1 on idle and 0 on throttle when I let off it didn't sputter ornanything for about 5 miles or so then red just 0 again.. hopfully switch is acting up or somthing.. I'm also noticing my tps keeps changing voltage I adjusted it a few times last time I did was tb off and it was perfect I tightened it down good and was good till I started driving a bit and noticed it moved Soni adjusted it with link when I shut car off it went back half as much and now keeps changing alot I was driving for awhile and it read .67 at 1% after I already adjusted with link so I hit gas a few times it went back to 0 at .65 1 time then I hit it again to doubble ck it and back .67 at 1% so I adjusted it again with link... any idea if it could be a bad tps or anything?

Click to expand...

Can you simulate your idle switch. You really dont need it if you simulate in link

Well before it didn't make a differance if I did it or not I had to switch pins 6 &14 not that the idle switch is still not working I tried the simulation on the way home and it works great now I might just say f... the switch and use the simulator now just gotta figure out why my tps keeps changing and I should be good

You can use the tps adjust in link too.

lasershark said:

You can use the tps adjust in link too.

Click to expand...

I have been it still changes around slightly but when you do change it in link when you give it full throttle it will only go to 98-99 % and like 4.97v which I don't like

When you use the tps adjust it will sometimes just get you close, then (sometimes) you have to manually adjust it a little to get the values right.

I've manually adjusted it like 15 times it looks great until it gets warmed uo and running then it moved.. I wo derived if the throttle cable is to tight

911gdsmboostin said:

I've manually adjusted it like 15 times it looks great until it gets warmed uo and running then it moved.. I wo derived if the throttle cable is to tight

Click to expand...

I slightly over tightened throttle cable once and when it got warm my idle crept up and it read 1% with foot off accelerator. When it was cold it was good. So very possible.

Hows the rich problem now? Mine will jump up to 9 sometimes before fuel cutting to 22 and i have all my tps and idle switch in line. Im hoping to learn something here

Seems to be working good now, is it the same as me when you let off the throttle it goes rich?