buster Posted March 2, 2014 Share Posted March 2, 2014 hello I have got a AEM EMS V2 and have bought an AEM 3.5 map sensor, AEM AIT, AEM Wideband and gauge, AEM EGT with gauge Can anybody tell me how to wire sensors to my stock harness so my EMS will recognize them thanks in advance Quote Link to comment Share on other sites More sharing options...
bignum Posted March 2, 2014 Share Posted March 2, 2014 (edited) The map and iat wire in place of your existing sensors, but you will have to splice the wires in, solder/heat scrink/tape is best for the joins. Not sure on the afr and egt but most kits have a 5volt output which is used to connect to your ecu. Who's mapping btw.? Just noticed you're nat, do you have the pinouts for the na ecu and engine loom plugs diagram would be useful. Edited March 2, 2014 by bignum (see edit history) Quote Link to comment Share on other sites More sharing options...
buster Posted March 2, 2014 Author Share Posted March 2, 2014 why splice can I not just replace ? Quote Link to comment Share on other sites More sharing options...
Gpro Posted March 2, 2014 Share Posted March 2, 2014 why splice can I not just replace ? replacing the wire from intake manifold thru the firewall and in to the ecu harness is a bit long. Wire is wire, no benefit Quote Link to comment Share on other sites More sharing options...
buster Posted March 2, 2014 Author Share Posted March 2, 2014 I meant why splice into original map wire ie won't the original map sensor still be in use then ? Can I not just replace original map sensor ? Quote Link to comment Share on other sites More sharing options...
buster Posted March 2, 2014 Author Share Posted March 2, 2014 ok just seen a diagram and now all sorted Quote Link to comment Share on other sites More sharing options...
Gpro Posted March 3, 2014 Share Posted March 3, 2014 I meant why splice into original map wire ie won't the original map sensor still be in use then ? Can I not just replace original map sensor ? The stock map sensor and the aem map sensor have different connections so you will have to cut the wires Quote Link to comment Share on other sites More sharing options...
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