Any way around MAP sensor?
 

Is there any way to get around the map sensor on an OBD0 crx, with an ex intake manifold, ive tried the check valves, it didnt work, is there anything else that would work?

Re:Any way around MAP sensor?
 

you can use an electronic voltage clamp - I will find you the link on how to make one - very simple

Re:Any way around MAP sensor?
 

Any way around it? as in what... are you trying to boost and still getting a CEL? or you cant figure out how to hook the map up to the EX? manifold.. If the check valves are installed the right way you should have no problems. Sometiems it takes up to 4 valves depending on how much boost your running.

Voltage clamps work great, just need to get them to lock down at 3.0v

Re:Any way around MAP sensor?
 

When i boost, the cel comes on and my car stalls out, so if someone could show me how to make these voltage clamps that would be awesome

Re:Any way around MAP sensor?
 

How are the check valves installed, if they are in wrong, it wont work right.

https://www.homemadeturbo.com/misc/cv_diagram.jpg

should take 3-4

what code are you getting?

Re:Any way around MAP sensor?
 

thats how there hooked up, i was throwing code 3 and 5, and my car would shut off, the only reason i could think of is that its a PM5 map sensor, my dx one, and i did the multipoint, do you think that has anything to do with it?

Re:Any way around MAP sensor?
 

your using a SI ecu, and a SI/HF distributor right?

Re:Any way around MAP sensor?
 

Yea a si ecu, and the hf dizzy, do you think the PM5 map sensor makes a difference?

Re:Any way around MAP sensor?
 

where do you get a voltage clamp? If it is set to lock at three volts how does the engine run when it shows less than that? Or does it just keep voltage from going over that?

Re:Any way around MAP sensor?
 

It just keeps voltage going over 3V (at least part that ECU sees).

Check this site out:
http://www.teamfc3s.org/info/articles/fcd/diy_fcd.htm

Re:Any way around MAP sensor?
 

Here is the link to the one I made for my Neon(clamped at 4.7 volts). There is probably no magic number as far as where to clamp it. You are better off adjuasting until the car runs best. With the right Pot IT is fully adjustable, Like 10 full turns. I am sure not everything applies to your car but it should work. If anyone has trouble finding parts or making one I will help you out. I have lots of extra parts.

Ted

http://www.fwdmopar.com/sites/dennis/howto.html