New to ZR-1 Removed Sec Vac system and now problem

[illeagleracing]

All that checks out except for the sensor under the ecm. I thought it was suppose to be left without a vacuum line but if it needs one Ill surely put it on.

[Paul Workman]

Originally Posted by illeagleracing

All that checks out except for the sensor under the ecm. I thought it was suppose to be left without a vacuum line but if it needs one Ill surely put it on.

Mine is exposed to the air - no vacuum line, per Marc. I pulled everything out on mine; throttle plates and all. And, I believe that included the vacuum solenoid as well, as I remember tying off an electrical connector (but I don't see how leaving it connected would be an issue, btw).

[Tony Davila]

Originally Posted by illeagleracing

All that checks out except for the sensor under the ecm. I thought it was suppose to be left without a vacuum line but if it needs one Ill surely put it on.

That is what I thought and plugged mine and I had issues. Just try it and see if it works.

[Pete]

I gather you chip is not done,
What ever the case put a vacuum hose
from vacuum pump to MAP sensor
Under ECM if you just connect to a
Vacuum source at the engine will
Not work at WOT and have the
Sensor under plenum connected

Pete