© 2025 DRIVEN LIFESTYLE. All rights reserved.
This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.
After searching through several posts and hearing about cleaning MAF's I could not find how to clean the MAF's. I bought CRC MAF cleaner and the...
Yes, I got 4121, 1212, and 1211. Reading the many threads they are all related. I will unplug the ecu's and clean them in addition to all the...
by big honkin screw connector, do you mean the one near the driver side rear shock tower? I cleaned it but will go back and clean again and...
I will go back and thoroughly clean all the relevant connectors before replacing anything. Though nothing so far looked at all dirty or corroded...
I finally had a chance to work and drive my 348 this past weekend. Jeff, Per your suggestion, I unplugged the tempurature sensors to see if...
Bruce, I will also take a look at the switch in front of engine. Other than cleaning the connectors and looking for loose wires what else might I...
I am not that uncomfortable either if it continues to just flash on and off. I would like to find and fix the problem correctly if I can. Thanks...
With the help of Miltonian, I built a test wire and was able to pull the codes and reset the ECU's Code 1212 and 1211. I swapped the o2...
Hi Tom and Chuck, I cleaned the MAF contacts and both O2 sensor contacts. Problem was they did not look the slightest bit dirty so I don't think...
Hi Tom, Jeff, or Chuck, Can you tell me where the four "air flow connectors" are that you cleaned. Seems likely that I have a similar situation....
Hi Jeff, I looked everywhere around both ECU's; no wires and buttons. Hope someone has a source for one or knows how to replicate the wire. John
Thanks Jeff, The test wire is not there. I looked at all sides. The wire is hanging on the passengers side of the ECU. There is a receptacle...
Thanks Mitch
Jeff, Thanks for your response. Sorry but I don't understand the difference between erasing and resetting. Doesn't resetting the ecu erase the...
Vince, I will disconnect the battery entirely when I purposely want to erase the codes, but does using the negative ground routinely erase the...
Vince, Thanks for the quick answer. John
My 1990 348 has negative ground disconnect. Does activating this reset the ecu?
Once the cause of the 1/4 cel is solved, does the light go out by itself or do you have to reset the ECU?
Thanks Eric, will keep searching. Russ at Ferrparts is trying to locate one. Thanks Todd, I emailed the guy on ebay. Hope he has one....
Does anyone have knowledge of replicating the test wire and the button used to pull error codes from a Motronic 2.7 ECU? I contacted Ricambi and...
