I just dropped a b16a into my 91 si hatch. I am wondering about coolent leakage by the front lefthand corner where the blockmeets the head. Kinda by the s/n of the head gasket. Do your b16a's leaka little is that spot.

Also i have a part throttle stumble, if i am crusing at a constent speed my car kinda stumbles alittle untill I push the gas down about a 1/4 of the way. Then it takes off like normal.
On a different note how far off our your tachs ? I have an auto ecu but I have yet to hit my rev limiter. I can peg the tach way above 8k what is up with this ? I know that my ecu is auto from the stamp on the knock sensor board. Could it be chipped ? how would I tell.

I will post one pic maybe you can see some focked of vaccume lines or something.

 

Check your heater hose connection at the side of the block under the distributor...it could be running down to the front like that...also, worst case you need a new head gasket! Any smoke out the tailpipe?
As for the stumble, are you using the PR3 or PW0 ECU?? If so, these ecu's need to see BOTH O2 sensor inputs or it will cause the car to run lean in 1 pair of cyl., and rich in the other two, causing poor driveability at low throttle angle.
Trust me, hook up both o2 sensors.
Peace

 

I am running both o2's No codes at all. I know that I am running rich. No smoke out the tail pipe at all. Pr3 ecu.

 

Damn I am full of questions, people with s1 trannys are they loud and whiney ?

 

S1 trannys are loud but who cares...they rip for all motor. If I was gonna do another b16 swap i'd definetly get a S1

 

I have the same situation as far as the rev limiter is concerned. The only time I've hit it is when the car isn't warmed up enough. I've taken it over 8k a couple of times, but didn't hit the rev limiter. I just assumed my ecu was modified also?

What model is your car btw?




[Modified by Brandon Chun, 9:16 AM 5/14/2002]

 

91 si hatch. XSI b16a with a pr3.

 

I have a automatic computer hooked up to my b16a the redline is at like 7400. I also had a leak it was coming from the lower radiator hose. I used the integra hose but it still leak for like 6 months until I rigged it. I just put the bracket on a certain way and it stop leaking.

 

Is your part-throttle stumble sort of a repeated surging/stumbling?

If so I know your cure

I have an S1 transmission as well. It's hard to get used to shifting so much lower than in a regular car but it's more fun after a while (except on highways). And no, it's not loud and whiney except when I crunch it into reverse.


[Modified by raene, 3:44 PM 5/14/2002]

 

well you could say that, but i think that it is quite minor. I think it could be the over rich fuel problem, or a simple vaccue routing issue. I have perfect idle and clean pulling to 8000 k plus. any ideas would be helpfull. Thanks

 

was the problem with the surging/stumbling there before you did your swap?