Help!! Celica is runnig rich at idle, Celica is up and running today. Options

[Bitter]

Uh you need the MAP connected to manifold vaccum, it has no idea how much air is entering without it! That's your problem! You can put it on any port that's connected directly to the manifold or T it off a hose with manifold vacuum in the mean time.


I don't mean to sound like an asshole, but it sounds like you have barely any idea what you're doing here.

[doory100]

I have an idea. I just rebuilt a engine by myself and it started first try. I may not know what every thing is exactly but I'm learning. Thanks for your help. I took automotive in college for a year and got straight A's. I just desided to go a differe rought.

[doory100]

so after putting the map vacume line into the TB, It runs great afr is at 14.7 and drives nice. im having a issue at 4500 rpm though. It seams to not gain any speed at that rpm and the afr reads 10. When do you start to trim away fuel or should I be adding more as the rpm climb?



what should I be setting the Throttle points at, and what does this do exactly?

[Bitter]

I'm not familiar with the Neo, I had a SAFC2 that was a dud and had a dead output so I could never use it to control anything. If it's reading 10:1 at 4500 rpm that would be too rich, you wouldn't try to add fuel to that. If the port you used for the MAP sensor is too close to the throttle plate it could be getting a poor reading, it should be reading from the manifold.

[doory100]

I used a T fitting like you said at the end of the TB. But I am planning on doing it up right. I still need to put it up on a hoist and check all the connections again to make sure there are no vacuume leaks.

[Bitter]

Ok, is the MAP sensor reading steady or does it do something weird at 4500 rpm? As throttle angle increases MAP should decrease, at full throttle it should be only a slight vacuum, nearly the same as atmospheric pressure. At steady throttle it should be fairly steady. When you release throttle and engine brake it should have very high vacuum and have steady vacuum around 15-20 inches at idle.

[doory100]

Seems to be fine. Drives like it did before.

[Bitter]

You had the dead spot before too?

[doory100]

No I'm not sure if it's still there I think I need to f with the safc some more. And I need to make sure everything is secure it might just be a vacuume leak. Thanks for your help I'll keep updating

[doory100]

blew the rad!! I hope I didn't damage the engine. What a way to start the weekend.

[doory100]

Are there any other Toyota's that share the same radiator, It doesn't look like it.