1fz-fe Misfire/stumbles in when put into gear! (2 Viewers)

[Dudemanslick]

I have a 1993 LC , after the parts cannon, the truck seems to idle FiNe when in park and even rev up smooth, but as soon as I put the truck in drive/reverse etc. It stumbles and hiccups, almost dies. Parts replaced are:
Dizzy
Dizzy cap
Button
Plug wires
Plugs
Coil pack
Fuel filter+reg. + pump
Cleaned injectors
Grounds are fine..
I'm down to the ignitor (as it supposed to send a high voltage signal to the coil pack)... can somebody point me in the right direction...?

 

[cruiserdan]

Check the air intake hose for cracks.

 

[Dudemanslick]

Check the air intake hose for cracks.

They all seem good but i think I'm gonna have to look REAL CLOSE!! I have heard about 3 or 4 times that it sounds vacuum related..., I will re-inspect all the hoses.

 

[Dudemanslick]

Sorry my reply is listed as if you said it lol...im new to this forum..bare with me

 

[voodu3]

Do you get a Check engine or a flashing OD light when you put in gear?

 

[Dudemanslick]

Do you get a Check engine or a flashing OD light when you put in gear?

No the check engine light wont stick, itll flash as you fumble into 200 rpm tho lol

 

[TheRealDeal124]

Have you replaced all the vacuum lines?

 

[Dudemanslick]

Have you replaced all the vacuum lines?

Smh...man..nah...this truck was just running...I didn't want to jump into complete overhaul just yet i was born in 1992...maybe this vacuum line thing is more major than I realized....I sprayed some carb/choke cleanr around to idle take plenum and around the hoses in sight but I didn't hear any changes ....

 

[AussieHJCruza]

If you don't know when the vacuum lines and intake hose were last replaced, it's a fairly cheap and easy (albeit time consuming) thing to rule out. Throw a new air filter in while you've got it apart.
It's much more likely to be vacuum related than fuel or ignition.

 

[Mat Jadamec]

O2 sensors?

 

[ajax1]

How’s the timing as well?

 

[Outsane]

Check the battery voltage