Hi, I have a friend with an early 92 348 which will loose power for a few seconds and then just recover. This is after a long string of repairs/fixes etc after one of the engine sides just shut off because of faulty coil. He was about to replace his 141037 piece 46 in the diagram with the one attached in the picture which is a different reference and coming from a 93 with the updated injection (5.7 I believe) He was wondering about possible compatibility issues. Otherwise I'll have to let him mine once my car is out of from the major. Also, coming from the MB world where there's and EPC software you can check all these questions in, how does this work in the Ferrari world? Any software or you just have to ask and rely on exploded diagrams in websites etc? Thanks in advance. Image Unavailable, Please Login Image Unavailable, Please Login
The thermocouple/exhaust module is a very simple voltage switch that lights a lamp in the dash and feeds a signal to the Motronic when the catalytic converter is over heating. The early 2.5 Motronic only has the dash warning light connections. I guess if you can swap in a pair of exhaust modules and the problem is cured, you are lucky. I don't like shot gun part swapping. Sometimes the solution is an intermittent wiring or bad contacts. My 348 would randomly loose power and the solution was a bad ground for the motronic on the left side valve cover. Re: MB world vs Ferrari world......a lot fewer F. cars and even fewer owners that work on their own cars. So the search function is your best source of info. There are many postings about the exhaust/thermocouple module on this site, subscribe and you will learn more about these special cars. FWIW. Jeff Pintler 89 348tb, 86tr, 99 360 3-pedal, S-160 Bobcat
Thanks a lot guys for the replies. I finally got mine from the major and I replaced both thermocouples as one was shot. I got TIPO 839 142581 which seems to be the current replacement. I told my friend, whose 348 is the same year as mine, and he's going to test it out. So for the record: in European cars the one on the picture seems to be the current replacement.
