1G Having some serious problems

[Nicholas Andrus]

New to dsm. Purchased a 1990 talon awd the talon came with a extra everything almost. including a ecu. so i sent the ecu off to ecm tuning to have ecm link added to it.

i changed the injectors and put the ecu with ecm link into the car and ive had nothing but problems sense. Ive now run into a huge problem. The car will idle fine put as soon as you apply any throttle what so ever itll have hardly 0 not very little responses and ittle go up and down from 1200-1800rpm. ive metered the tps. no problems there. at about 80%-WOT the car will finally recognize that im adding more throttle and itll go haywire. maybe i messed with setting i shouldn't have when initially using ecm link.
Also before changin the injectors or ecu i had absolutely none of these current problems
mods i have
16g turbo
850cc fic injectors
aftermarket exhaust manifold

 

[tmoney20g]

I see a couple things here, you cracked your throttle about 2/3 the way in, idle stop switch still said 1, so that's not working correctly.

Your front o2 sensor isn't cycling, so that must be dead, or something else is up.

 

[Dsmkauai]

Boost leak test and make sure your maf is plugged in

 

[pauleyman]

Why are you locked in open loop mode?

 

[pauleyman]

You also said you have 850 FIC. Did you check the global calculation? Doesn't match the tables.

 

[Dsmkauai]

Haha just posting same thing. Make sure your settings are correct for your injectors bro! And check base fuel pressure.

 

[pauleyman]

Car ran perfectly on stock injectors and stock ecu? Are you sure those are 850s? You could put the 450s back in and zero the fuel. See what happens. You still need to get to operating temperature, o2 sensor fixed and/or plugged in etc, idle switch fixed or ground fixed. Did you change ANYTHING else? Remove something recently. Do any maintenance and possible forget to plug something in? Or did you ONLY change injectors and the ecu? Even so when you changed injectors what all did you remove and is it all correct now? I've seen people remove the throttle body ground not realizing it's important.

 

[Kdouglas89]

This issue seems like it's all in the tune. If this issue did not start happening until after you installed link, then something needs adjusted. If you are un-familiar and unsure how to do basic tuning, I would advise taking it to someone who does know, before you really mess the car up.

Kevin

 

[92AWDHX40]

get a good tune.