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Discussion Starter #1
I'm getting a check engine

I'm getting a check engine light for bank 1-4. If I read the blinking lights correctly, the error code is 4114. Does anyone have the diagnostic info that describes what this code means? Motronic 2.7, 348/MondialT. Thanks.
 
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Discussion Starter #2
Hi Lou, welcome to Ferrari-Tal

Hi Lou, welcome to Ferrari-Talk.

Sorry it took so long to get back to you on this.

The WSM states that 4114 is TDC Control Unit Recognition. It also states that this error code does NOT trigger an MIL.

I suggest you go back and pull the numbers (flashes) again because the WSM states that only 1 of the 4 series faults trigger an MIL, which would be a 4111 - Relay oil/water cooling fan. This means that a 4 series code may be stored & retrieved, but only 1 4 series code will cause an MIL to come on.

Regards, JRV
 
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Discussion Starter #3
Thanks JRV. I worked on this

Thanks JRV. I worked on this all afternoon. Cleared the codes, drove the car, got a check engine 1-4 again, read the code. This time it was 1-1-1-4, which indicates a lambda sensor problem and confirmed my suspicion that I must have caused this when messing with the exhaust system. After much searching I found that the black wire had backed out within the O2 sensor connector in the area under the oil filter. I cleaned all the O2 connections and clicked the errant wire back into place. Went for a test drive to determine if the check engine light would come back ... the problem seems to be gone.

Since I had the airbox out to get to this area, I also took the time to secure all the dangling hoses that criss-crossed the area over the gearbox. It's a wonder to me that the hoses or even the wires in that area hadn't abraded or burnt thru. Most could be ziptied to something that was already steadily fastened. The only one that gave me trouble was the pair of hoses for the oil vapor recirculation that meets at a 3-way union over the gearbox. The two hoses were only 18" long each. I replaced them with 24" each of 9.5mm emmissions hose from AutoZone. This gave me enough slack to run them back to the subframe under the airbox and secure them there. Hope I used the right hose. The previous hose was cloth covered but I was lucky enough to have found the one I got.

Lou
 
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