Okay, so I have been searching for days and have came up with a ton of great advice and read so much material that I should be a damn expert by now on this Civic. I bought a 2000 Si Civic that was rebuilt and boosted. I got it home, and cleaned some parts on it that looked a little half assed and put a better throttle body gasket in. It is a b16a2 with a 60 trim garett on it. It has been idleing really high, like 3k rpm. It does not have a IACV and it is running a 2 bar map sensor that is a gm and was told it was off of a Grand National. I also changed out the turbo manifold to an equal length ramhorn and put a 3 inch down pipe as well. Not cheap parts either. I went to get it tuned and the guy could talk to the computer but the ecu is unable to change anything with the car. He even put a known good ecu in it and still had no luck tuning the car. I have ripped out the wiring harness and found that the TPS was wired up wrong, the MAP sensor was wired up wrong and the IACV plug was hooked up to the ambeint temp sensor. The knock sesor was not existing and thier was not a oil pressure switch. I fixed all of the above. Ohmed tested the injectors, they all read 12.9 ohms. I also checked the injector plugs whith key on and engine off and the battery side read voltage and the ground side read nothing. My fuel pressure was not holding so I checked the fuel pump to only find that the hose clamps were misssing and allowing fuel to just go back into the tank. Fixed that and adjusted the fuel pressure to about 39 psi. It now idles low and it spits and sputters. I pulled the spark plugs and they are black. Not good!! If i change the spark plugs out will it fire up and run better. I know it is very rich right now. Would the fuel pressure have been some of the issue for it not running right. Last question that only remains is, on my boomslang harness for obd2b to obd1 conversion, the 9 pin (IGP2 power source) from the OBD2b is hooked to the 1 pin (IGP1 power ground) on connector B from the OBD1. I am no rocket scientist but this sounds wrong. Power source, power ground.......is that right?? Everything else is hooked up right on the harness and I have pined it out hundreds of times. I am running out of options here, anyone know what is going on here or maybe have had the same problem. I thank anyone willing to help but I am at some dead ends here and really want to get this thing tuned and running.

 

2 things I didn't hear; Wideband for AFRs and what specific EMS you are running.

 

Honestly have no idea what the air/ fuel ratio is right now but i know its rich *** ****. When i started working on it, it was reving at 3k, smoking white smoke and smelt horriable of gas so I know it wasnt a headgasket. Their is tons of unburn gas around where the downpipe ends where the exhaust lets out right now. I fixed everything and now it will start but low idles and spits and sputters. I am running a aem fuel rail, with the fuel regulator set at 40psi and the injectors are 700cc with a walbro 255 fuel pump. The ecu is a obd1 with a base map programed in it. Did that answer your questions?

 

Yeah. It does. Run a real wideband (AEM UEGO for example)so you can monitor your AFRs and a real EMS (like Neptune RTP or Hondata) and get it tuned. A chip is not a tune.

You bought someone's POS project because it was boosted. Now it's going to cost you a lot of time and aggravation.

 

+1 for that!!! When I bought the car I didn't have the slightest clue as to what a Honda needed for this type of set up but I am learning very, very fast.......and I am not happy but I am glad I am learning now about what is the right and wrong way of doing things. I bought it to learn more about boosted cars and the way things work with them. Talk about getting one that was all wrong from the get go. So I should get rid of the obd1 ecu that is in it and get a aem one and get a different ems?

 

It actually has a aem afr gauge in it but I have to get it plugged in again cause I replaced the other downpipe so I have to get a bong installed. Is that what you mean by wideband? So I can see the actual afr on the gauge and tune it that way?

 

aem sells something to mount on your dp, for the o2 bung.

 

I have a friend that welds really good that was going to do one for me for free. I just ordered a p28 ecu with the hondata s300 already on it. I also ordered a new harness so everything should be good after that, we shall see.