Car went into limp mode, found transmission codes, connector was leaking, replaced connector and conductor plate erased codes now car won't start or just barely runs.......and quits No codes since I cant get it restarted - where to start trouble shooting?

 

What were the codes before you replaced parts?

The eng. does not have to be running to read codes. Key on and check for codes in the ECM and Trans. Modules.

 

116 Component y3/6b1 trans oil temp or Y#/6s1 (starter lockout contact) is sporadically faulty or both
134 CAN communication with the traction system is sporadically disturbed
135 CAN communication with the engine system is sporadically disturbed
136 CAN communication with control unit instrument cluster is sporadically disturbed
137 there is a sporadic fault in CAN communication w control module N78 or the transfer case position is sporadically implausible
148 The torque converter lock-up clutch causes a sporadic impermissable closing
132 CAN communication with engine system is sporadically disturbed or eng temp is sporadically implausible
133 CAN communication is sporadically disturbed
133

 

hooked up fuel pressure gauge - barely 10lbs while its trying to start damned thing leaks a little, though......shouldn't this be north of 40lbs? holds 5 lbs after attempted start

 

found earlier post from you re: this - starting w/the fuel filter.............

 

have the "short" fuel filter; anyone got a source for the longer updated fuel lines??

 

Here are the instructions with parts needed which should be purchased from dealer. Special tool required to remove filter.

 

Okay, got filter and updated lines - after wrangling with THREE Western Washington MB dealers to no avail on the updated lines, was able to source them in Portland (5-6 hrs away) sounded better than waiting til Friday afternoon earliest,, so off I go, humming obscenity laden hymns......thought "would an indy shop wait til Friday for these things?" called one and they said "We'll have them in an hour"(Thanks, Conaway in Everett, WA! only an hour away......
). At pickup, the nice counter lady mentioned that their source was now cleaned out on these..........I've now wrenched an 80 SLC, marveling at the engineering when something needed attention, an 87 300D, the same, a 97 E320, couple of swear words, but overall not bad, then this %&*@# fuel filter........real testament to "oh ****, we forgot to plan for the fuel filter" engineering - then the updated part is worse.......don't let this dissuade you from the repair, but MAN, ...........as I temper tantrumed, my wife pointed out that the car IS twenty years old.....

 

You should source your parts from here, not the dealer:

https://www.autohausaz.com/