So I have this 90LX I wire tucked that didn’t run when it got here . Cranked like a dead battery . Long story short the battery ground in the trunk was no good so I fixed this . I was not the one who relocated it originally .
Car runs but won’t idle for anything breaks up etc . 306 , performer heads , Edelbrock intake , unknown cam , long tubes . 24lb injectors , A3m ecu , bbk mass air meter with the adapter plug for it .
Do base idle reset and clean the iac motor . Car runs for a few then starts running real funny and dies again . Won’t hold idle and breaks up .
Knowing it has no 02 sensors or harness I order one from Ron Francis . Pin it for a 90 5 speed car . Check pin 46 on ecu and make sure it doesn’t have voltage when trying to crank . Good to go .
Hook up ecu fire the car up it idles up like it should seems it idling Decent now . Go to back out of the driveway fire it up and it won’t even start . Have to goose throttle runs like it’s got a fuel miss or pressure issue which it doesn’t (gauge on regulator ) . If I’m reading the light righ
In diag mode it will run and hold idle like it should as well .
So what do you guys think ? Either way I am ditching this meter and putting a pro m on the car for him.
Run codes -
KOEO
85- Canister purge - it isn’t there no big deal
66- No mass air signal
31- canister / egr both aren’t present
KOER
26- mass air
41-Lean fuel mixture
91-Oxygen sensor problem / fuel pressure out of range / injectors out of balance
33- egr / canister - again not present
View: https://youtu.be/XPbnEz_rZU0
View: https://youtu.be/QkS6vDjxJy8
Car runs but won’t idle for anything breaks up etc . 306 , performer heads , Edelbrock intake , unknown cam , long tubes . 24lb injectors , A3m ecu , bbk mass air meter with the adapter plug for it .
Do base idle reset and clean the iac motor . Car runs for a few then starts running real funny and dies again . Won’t hold idle and breaks up .
Knowing it has no 02 sensors or harness I order one from Ron Francis . Pin it for a 90 5 speed car . Check pin 46 on ecu and make sure it doesn’t have voltage when trying to crank . Good to go .
Hook up ecu fire the car up it idles up like it should seems it idling Decent now . Go to back out of the driveway fire it up and it won’t even start . Have to goose throttle runs like it’s got a fuel miss or pressure issue which it doesn’t (gauge on regulator ) . If I’m reading the light righ
In diag mode it will run and hold idle like it should as well .
So what do you guys think ? Either way I am ditching this meter and putting a pro m on the car for him.
Run codes -
KOEO
85- Canister purge - it isn’t there no big deal
66- No mass air signal
31- canister / egr both aren’t present
KOER
26- mass air
41-Lean fuel mixture
91-Oxygen sensor problem / fuel pressure out of range / injectors out of balance
33- egr / canister - again not present
View: https://youtu.be/XPbnEz_rZU0
View: https://youtu.be/QkS6vDjxJy8
Last edited: