If my split air pipe is disconnected/blocked off, will my car not start? Just curious because I took off the convertors and just have the exhaust manifold hooked up. I was going to drive the car to the shop to get my exhaust done but ever since I removed the split air pipe, disconnected it from the catalytic convertor the car will not start and I get a beeping noise when I put the key on accesory. The car is a stock 88 rx7 n/a

 

It should start. If you have just the pipe off then you should be okay. But if you remove your air pump, then you won't be able to open your 5/6th ports. I believe that's how it works on an S4.

 

5/6th ports won't activate without backpressure.

 

We need to know what year model you have. S4 and S5 engines work very differently in regard to the air pump.

 

s4 motor, the air pump is still there.

 

I hope you have ear plugs..(you are driving the car with JUST the manifold to put exhaust on?).

 

Yeah my cat was all clogged up and not flowing well. I got it started today, I put everything back, cat and all. Going to the shop in the morning first thing...

 

this should have nothing to do with the car not starting.