Ferrari 348 hot start - does not hold the idle

hello guys! in this weekend i did several tests and maybe i solved the problem in the easiest way:

I turned on the car when it was cold and it didn't go well; I immediately tried to work on the main relays ( fuel pump and injectors), inverting several relays and I found out that the relay of the injection control of cylinders 5-8 didn't go well; I replaced it with a new 30A Fiamm relay, and the car started immediately! to be sure that the problem was him, I did 2 starts with the new one and it went, I put the old one back and it didn't start; I put the new one back and it went even when it was hot or after 20 minutes of stop!

now everything seems to be ok, i will do a short test drive anyway!

 

online I find only 20/30A bosch Relay;

the original metal one is 30A

do you think I can put the 20/30 or 30/40 plastic that are now on the market?

 

I should try to read well the wiring diagram with an electrician who knows the car (douring the service)

 

exactly that's what I want to do, buy them all new so I don't have to worry about it; I've seen that it's better to put relays with this number: 0 332 019 140

Of course I can't find them online

 

I've just found this seller: https://www.ebay.it/usr/jwal7290?_trksid=p2047675.m3561.l2559

who seems to have all Tyco and Hella's counterparts as well.

I look forward to his reply

 

I was looking for it and couldn't find it, but thanks for the link! this is very useful, so I can redo the whole panel as new!!

 

Reading your post another user reported this:

""TE" means Tyco. Bosch had a couple of equivalents to their old 0 332 014 140: 0 332 019 140 and 0 332 209 168 but these are also hard to find. These relays a re a bit special as they are "low pull-in voltage" type, i.e. they have stronger solenoid coils and can engage at as low as 7 volt. I found out that one, possibly fairly new, Bosch equivalent is 0 332 209 136 which is GM p/n 90491314. This GM p/n is also manufactured by other relay manufacturers like: Hella 4RD 007 794-05, Siemens V23134-A52-X237 ant Tyco (TE) V23234-A0002-X031 (or X032) which has even lower (better) pull-in voltage of 6.5 volt . I do not have the specs for the Tyco relays (4) you got for the fuel pumps and injectors but I presume they are similar to the Tyco number I mentioned."




in your opinion is it better to use the BOSCH 151 or the TYCO X031 which has a pull-in voltage 6.5?

 

Ok, then I reread both discussions, the best thing with the availability now on the market I think is for all BOSCH 4113 (the 9 equal) there go the corresponding that you reported as BOSCH 151, for the 4 of the pumps and injection (CDNL) that have as original part 4140, should be replaced with the tyco X031 (which have a pull-in less) the rest always as per your post

 

Hi guys, yesterday I checked what you asked me about the lights on the instrument panel: when I turn the key before turning on the engine, two lights light up with the words "1-4 low" and "5-8low" as soon as I turn on the engine, all the lights are off.

 

Slow sorry, no engine no light, I hope it is because there is no problem!