Idles rough and backfires. Wont accelerate past 45mph

[TheSubaruJunkie]

I removed the intake manifold to replace some stupid coolant bypass line. After I put everything back together my car runs like shit. It idles real rough, and when i accelerate it backfires. I cant get it to hardly go past 45mph or 3000rpm.

I checked for vacuum leaks and found none. Im certain I re-connected all the connectors, but im at a loss. The car didnt run this bad before I removed the intake manifold.

-Brian

[TheSubaruJunkie]

Is this something a vacuum leak could cause?

[Bheinen74]

it's most likely your timing belt slipped its time. check that and your spark.....

[TheSubaruJunkie]

I was pulling a plug wire to remove the plugs and inspect.
The 1st wire I removed, broke apart in my hand. So i went and bought a new set and we'll see if that helps.

I sure hope to god my belt didnt slip.
-Brian

[douglas vincent]

Make sure you didnt damage or forget to clip back the water temp sensor!

[TheSubaruJunkie]

Is that the sensor under the alternator? In the center of the block?

-Brian

[douglas vincent]

No, its the sensor in the crossover pipe. The Red one, the one that is EASIER THAN CRAP TO BREAK.

[TheSubaruJunkie]

Crossover pipe? You talking about the section that runs directly under the intake manifold?

Got any pix of this thing? The sensor that is, and where its located.

-Brian

[georryan]

Would a dying temp sensor make a car idle rough or run rough? I thought it would just mess with your temp gauge. If it does mess with how your car runs I might have solved one of my problems.

[Legacy777]

Yes the ecu temp sensor makes a huge impact on how the car runs