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just did the b18c1 swap in a 92 dx and started it and it runs super rich barely keeps running and blows black smoke out the back. i was doing some tracing and noticed 2 map sensor sylinoids one on the stock dx firewall and one on the gsr throtlebody now i know i have one to many question is there both pluged in lol.. i unplug the stock dx one and it revs supper high like its going to blow up... and if i unplug the gsr one it stays the same.. also the dx one has a line coming off the goes to go to no where like an extra line ... can anyone one help me out here thanxs..

 
Rep Power: 0

What year is the swap? What harness and ecu are you using?

 
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its out of a 94 gsr its using the gsr engine harness from the engine and pluged into the stock dx harness . the vtec and knock sensor have also been wired directly to the ecu

 
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update///// i traced the wires on the gsr side and when it gets to the DX main harness there are little plugs in the plug junction so i took out the stock dx map sensor all togeather and pluged that harness into the gsr map sensor and it runs better just reves up and down constantly and i can hear poping coming for the exhaust But its not running as rich as it was, still looking for more ideas ..

 
Rep Power: 0

more updates... i took out the one map from the dx and pluged the harness into the gsr map and found a vacume line off under the intake, i hooked it all up checked the timing pulled the spark plugs and they were fouled. cleaned up the plugs put it all back togeather and it purs like a kitten...only problem is when you start to go over 3000 rpm it still dumps tons of fuel and you can hear the injectors just a clicking away its fairly loud.. any ideas why its still dumping fuel past idle?