Hey everyone.

I finally got my motor in the car. I have it started and no more leaks. I am now having a problem with the engine dying if you open the throttle too quickly or if I shift it into gear. I am guessing that I am having a fuel issue?

That's what it sounds like to me. Auto or 5 speed?

Check the vacuum lines around the MAP.

I checked the map. It appears to be good. Its an auto.

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[This message has been edited by tshark (edited 09-08-2018).]

It idle fine if I just leave it.

Starting to think I have a bad map sensor. I just replace the connector for it. I am getting a code 34.

How do i test it? Should I just replace it?

This is a pretty good MAP sensor testing site.

http://easyautodiagnostics....or-multimeter-test-1

I don't have a vacuum pump. So testing the vacuum with the volt meter is difficult

I did break out my volt meter and do as much as I could with what I had. Here is what I found out.

Pin A (Which is the red wire) is exactly 5.01 volts dc. (this looks good)
Pin C (which is a black wire) is a ground (also good 12v to battery positive)

On to pin B (Green wire) which is the one that changes in response to vacuum.

With the key to the run position but the engine off. Pin B is putting out 1.25volts dc. From what I am reading, It should read close to 5 volts at this point.

When I start the engine and check pin B, I get some weird behavior.

The voltage at pin B likes to hang around 3.5 volts with the engine spinning about 1500 rpms. (It was cold when I started my test combined with this problem I am having)

When I open the throttle... It never drops bellow 3.5 volts; however, I did see it jump to 4.5 volts sporadically. Theoretically, as vacuum increases, so should resistance at pin B?

Do you think I have a bad map sensor? I think I do but just want confirmation before I go throw another 40 bucks at the problem.

Some information. I deleted my EGR and have a reprogrammed PROM installed from phonedawgs to delete the solenoid and lower stock idle. The engine is timed 10deg advanced. I have not had this new motor on the road yet.

Thanks for the help.
-Matty