When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hey I'm having trouble trying to start my car after doing my swap. I'm thinking it has something to do with the wiring but I'm not sure how to go about it. I'm going to list some specs and what I have found out so far. Later on I will also post some pictures of my set-up/wiring.
-1990 civic si (b-series)
-0bd0-obd1 rywire harness
-when turning the key the main relay clicks but I cant hear the fuel pump priming. (brand new walbro gss341 fuel pump)
-starter is good checked by jumpstarting the starter and the engine turns over
-the day I brought my car to the house (tow truck) while the battery was connected I took off the ecu, the next day the battery had been drained was 12.6V next day was 5.8V. (not sue what it means)
-checked for continuity on the fuses from the engine bay fuse box and the wires that get tapped to the old harness.
-checked all my 3 grounding points
Any ideas will be helpful, thanks in advance.
Last edited by davidayala831; Nov 10, 2017 at 03:59 PM.
Today when I was messing with the car I decided to try jump starting it, at first it was turning over. With the spark plugs off I got it to turn over several times for a couple seconds (since it is a new build I wanted to get oil circulating around the engine). I then put the spark plugs on and bought some starting fluid to see if I could start the engine. However the car didn't want to turn over I connected the jumper cables and it still wouldn't turn over like it was doing before. I'm going to try jump starting it again later on today. Anyone have an idea of what this means???
for one, only use starting fluid if you like big explosions. If its getting gas you dont need it. Save that can for the carnival or something. Maybe your lawnmower to see if the carb is plugged. Check the small terminal on starter solenoid with a test light when cranking. Go from there. Other than that, I see a wiring nightmare, and I cannot make sence of it. Good luck!
Still trying to figure out what is happening I'm getting really frustrated can anyone help? I took off the rywire harness and made my own harness, I'll post a picture of the wiring diagram I used. I already figured out why the fuel pump wasn't priming. So at the moment the car cranks but doesn't want to start, I'm getting spark and fuel. I'm getting codes 6 and 21 but they should not stop the car from starting right? Also another thing I'm not sure is if the base map downloaded correctly to the ecu I'm not very familiar with using the Hondata Software. When I plug in the usb to the laptop it sais that the file is in the ecu but it doesn't show me any of the parameters Ill post picture of what I am talking about. I don't have a spare obd1 ecu btw.
OK so I know that I'm getting fuel all the way to the fuel line but I am not sure if the injectors are the problem. Right before I realized I wasn't getting any oil pressure I tried spraying some carb cleaner to make sure fuel was not the problem and it sounded like the engine wanted to start but stopped when I realized the oil light was on and the temp was going up. I checked with a test light to make sure power was going to the injectors. I bought the injectors used (some RC 310CC) so I'm not confident that they are good how can I make sure they are working???
And what would the solution be in your case so we have closure to following your saga and also maybe somebody down the line might be able to try the solution you found to work?
the last 2 issues I had was because I was missing the bottom orings for the injectors and when I redid the harness I messed up the wiring for the dizzy.
Crank NO Start
