300TE Stalling/Acceleration stumble
 

Hi guys,

Need some help on my 88 300TE. There is an inconsistent acceleration issue where if I give it too much gas, the car will almost stall, or simply refuse to accelerate and stumble. Once I am doing 20mph+, no issues, no power problems, everything is smooth. Its just accelerating away from a stop light...the longer I sit at idle the worse it gets.

I just ran a fuel volume test and I exceed spec. I then moved onto fuel pressures and I found an issue - Lower chamber was 4.1 bar, upper 5.4. But then after I ran the car for a while doing other stuff, it went back to up 4.9 bar lower...I've never heard of the lower pressure ever supposed to be less than 4.9 bar.

Any ideas on whether the odd lower chamber pressures could be electrical related or anything else?

Too much gas to almost stall seems like more air is being pulled in than gas. Possibly throttle body issue somewhere?