Engine bogging under load

I finally got the turbo installed in the car. Everything seems to be okay in terms of idling and revving the engine. No check engine lights, the AF gauge seems to be reading where it should once it warmed up, no smoke coming out of the exhaust, no major fluid leaks that I can see. It would seem everything was okay.

Today I finally rolled the car out of the garage and onto the street to take it for it’s first ride under boost. As soon as I try to start moving the car, the engine bogs down and pretty much dies. If I’m quick enough with the clutch and gas and take the load off the engine, I can usually save it from dying altogether. If I rev the engine with with the clutch disengaged it will rev all the way to red line, but as soon as I put it in gear and try to move, it’ll bog down as soon as I try to give it some gas.

I’m stumped as to where to look. I’m thinking it might be something to do with how I have the vacuum lines, wastegate and blow off valve all plumbed.

Anyone with any suggestions?

BTW, it’s a b18a/b LS setup. T3 with external wastegate with manual boost control if it makes any difference.

is the car tunened on anything??

Is the car whaaa?

I got a chip burned with Turboedit from Xenocron. I tried new spark plug wires today. I got a slight improvement, but not much. Someone on another forum is suggesting that it’s the MAP sensor, but wouldn’t I get a CEL if there was something wrong with it?

It doesn’t always give a cel with a map sensor. It could still be sending somewhat of a signal. Wiggle the wires around to the map sensor. Mine used to give problems because of a bad connecting, it would bogg out like that.

I pulled out the multimeter last night to make sure I hooked up the MAP sensor correctly. One wire is supposed to be 5v and the other 3v and the third the ground. I found the ground wire, but I’m getting 4.88+/-.01 on the other two wires. WTF?

UPDATE: Turns out it was the basemap. I ordered a new one from Xenocron and dropped it in today and it worked. Now off to the dyno for a final tune…can hardly wait…