1G 1990 Plymouth Laser 2.0 NT

[1990Laser4g63]

Okay, so just for clarification, I'm a noob when it comes to DSM's. Lol. I'm a SBF guy. After I rebuilt my motor, everything new for the most part, I can't figure out where these two lines go, and it causes the car to idle high, as I've plugged them off and it idles around 750. One is on the top, drivers of the intake manifold, and one is on the intake (passenger side) by the fuel rail. Help please!
Thanks,
Logan

 

[o0GuitarKid0o]

Okay, so just for clarification, I'm a noob when it comes to DSM's. Lol. I'm a SBF guy. After I rebuilt my motor, everything new for the most part, I can't figure out where these two lines go, and it causes the car to idle high, as I've plugged them off and it idles around 750. One is on the top, drivers of the intake manifold, and one is on the intake (passenger side) by the fuel rail. Help please!
Thanks,
Logan

The first picture you posted goes to the brake booster that's located on the drivers side.

Then the other side of the hose that the brake booster is connected to goes into the back of the intake on pic 1 that you posted.

Pic 2 goes to the valve cover pcv and then to the hose connector between the fuel rail/injectors.

I took some pics to avoid confusion because my wording may be weird. let me know what you find out.

BTW how do you have those connected ATM?

The intake pipe breather hose is connected to the side of the valve cover in case that's mixed up. I posted a pic that I had on hand if you look close enough you'll see what I'm talking about how the side of the valve cover an intake pipe connect together.

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[1990Laser4g63]

I didn't have them connect at all! I so appreciate your help, after I rebuilt the motor I trashed the old hoses and put all new vacuum lines and hoses on. And I seem to have forgot those two, the car now idles at a smooth 700. Thanks!
Logan

 

[o0GuitarKid0o]

Glad to hear man enjoy the laser !

 

[1990Laser4g63]

Okay, so just to be perfectly sure, the line by the fuel rail goes to the valve cover passenger side?

 

[o0GuitarKid0o]

Okay, so just to be perfectly sure, the line by the fuel rail goes to the valve cover passenger side?

The one in between the fuel rail goes to the PCV on the valve body

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[1990Laser4g63]

Hey guys, I'm a noob so beware. Where do these two lines go? right under the throttle body.
Thank you in advance! (Pictures would help too as I'm not familiar with these motors).
Logan

 

[serviceguy]

Thermostat housing and water pipe. I believe the lower goes to the thermostat housing and the upper to the water pipe. or the other way around...

 

[livedsm4g63]

I would leave them disconnected. Chances are the previous owner did an FIAV blockoff. If you dont know what that is, search google. DSM FIAV blockoff.

 

[1990Laser4g63]

I don't think they did, the guy to have it before me couldn't even get it to run, much less turn over. I rebuilt the motor and couldn't remember where those went .

 

[livedsm4g63]

If you forget, just one reminder. The engine does go in the engine bay

 

[1990Laser4g63]

Another quick question, where should the oil pressure sensor/switch be wired too? My oil gauge doesn't work at all

 

[serviceguy]

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Everything else is here

 

[1990Laser4g63]

Where does the single wire off of the end go to though? (Oil pressure gauge sender)

 

[1990Laser4g63]

Hello all, once I got my car rebuilt and running, I've run into two problems, it idles rough as heck and seems like it doesn't have much power, and my oil pressure gauge doesn't work, and there isn't a wire going to it at all, if I was to wire it up, how would I go about that?
Thanks, Logan

 

[steve]

Both sensors (the idiot light pressure switch and the gauge pressure sensor) have one wire to them.

http://www.dsmtuners.com/threads/the-1990-engine-compartment-wiring-harness.473792/

B-21: Oil Pressure Switch (dummy light) (Blue wire black connector, small 1-pin)
B-22: Oil Pressure Gauge Unit (Green wire black connector, small 1-pin)

Both wires come off the harness to the alternator.

 

[steve]

Is the car firing on all the cylinders?

I posted the wiring answer in your other thread.

 

[1990Laser4g63]

If I could hug you right now I would . I had no clue what those two wires hanging off the alternator were, and the last guy put wire caps on them.
Thank you!

 

[1990Laser4g63]

It seems to be, I've changed plugs, wires, coil, the only thing I haven't changed is the ignition control module

 

[steve]

I assume you mean the power transistor that switches the current to the coils. It's dumb so I wouldn't consider it to be an ignition control module, the ECU does all the work on these cars.

These cars have a wasted spark so 1 and 4 is one pair where 2 and 3 is the other. If the problem is ignition related you usually loose both cylinders of the pair.

What's you compression readings?
How did the old plugs look?

Since you don't think it's missing, how is it acting rough?

This is a 1990 Non-Turbo 2.0L car, right? Manual or Auto?

 

[1990Laser4g63]

I mean it's still very possible to be misfiring, but since I've changed everything I didn't think it'd be likely. I just changed the ignition control module because I wasn't getting spark. It seems to miss or hesitate under load (accelerator). Mostly 2nd and 3rd gear. It's a manual, 90 2.0 nt. I haven't done a compression test yet but will tomorrow after work, and be sure to post the results! The old plugs were rusty and oily. I did replace a head gasket and all other essential components, plugs are just oil fouled now.