what exactly is that electronic box under the seat of my 88 lx

[Tha Realist]

what exactly is that electronic box under the seat of my 88 lx (2bbl),what does it control and how do i know if its working? my brother says its the ecu . is he right?

[A20A1]

ECU... not like EFI cars though. It just sends or recieves signals to the Black box and the vacuum control solenoids on the inside. and also from the O2 sensor and possibly the air intake temp sensor.
you can remove it along with the associated vacuum lines and your car will run fine, so it's not dependent on the ECU, it just helps emissions.

[k-roy]

Thats the ECU. Its only function is to control the emissions system.

[NXRacer]

READ THIS

https://www.3geez.com/showthread.php?t=32069

[Tha Realist]

could it be making my car stall if its defective and the vacuum lines and sensors are still connected? also do you know what the heated base is on under the carb?something about EFE? i've been having a major problem with my ride stalling out constantly and i wondered if that had anything to do with it. thanks for that quick response too.(im at a library)

[A20A1]

Early fuel evaporator... something like that... yeah it electronicly heats a grating that sits below the primary barrel so fuel is vaporised when it's cold out.. I'm not sure of it's operating temp... problaby the ECU has some hand in it's function.

I doubt the ECU can be defective... unless you squashed it or the floor of your car flooded.

[A20A1]

I would check the distributor for problems... like old cap and rotor, or plugs and plug wires... and check for vacuum leaks by spraying carb cleaner around the carb and intake manifold and listening for the idle to change... like rpm increasing.

don't spray carb cleaner into the intake stream since that would also have the same effect of changing the idle.

[Tha Realist]

physically,it looks good.i dont know about electronics to know if the board inside is good.

[dXsquared]

so i can take that out??? fuck.. i didnt know that.. that stopped me from throwing my seats in.. i was gonna use Civic seats and they needed a bracket right where that computer is!! damnit!!! now i know with the new car tho

Travis

[k-roy]

so i can take that out??? fuck.. i didnt know that.. that stopped me from throwing my seats in.. i was gonna use Civic seats and they needed a bracket right where that computer is!! damnit!!! now i know with the new car tho

Travis

Yea I don't have mine installed. Its ok to remove only if you have removed the emissions lines under the hood.

[Silver86LX]

so i can take that out??? fuck.. i didnt know that.. that stopped me from throwing my seats in.. i was gonna use Civic seats and they needed a bracket right where that computer is!! damnit!!! now i know with the new car tho

Travis

You might not want to remove all the emissions crap because here in Ontario we have manditory emissions testing on all vehicles every 2 years. But if your new car is an '86 you'll just have to wait another 2 years seeing how cars that are 20 model years old or more do not require emissions testing.

[POS carb]

i guarantee you if you've never played with the vacuum system you are going to screw it up by disconnecting it. How do oyu bypass the slow mix solenoid? I never tried! Can you use a coil hookup?

[A20A1]

Slow mix, is that the one on the passenger side of the car?

Not the one at the rear of the carb right?

Hey Eric did you see my 4bbl carb manifold?

[dXsquared]

im in Northern Ontario.. we still dont have that shit... but its supposed to be COMMING!! in like 2-3 years... oh well.. the 3g will be gone in 3-4 months... oh yah, plus i have a weber, no cat and it runs super rich so i wouldnt pass anyway

Travis