So awhile back ago my accord was turboed. I decided to return the car to stock. After I replace my dsm injectors with oem ones, The car starts to misfire in cylinders 4 and 3. I changed the distributor cap plug wires. checked the spark plugs, did a compression check, check the valve timing. changed the intake manifold gasket. So i decied to hook up an led light up to the up to the injector wire to see if they are getting a signal. They are getting a signal on all 4 injectors. After I did that test the car wont start. I tried changing back to the dsm injectors and it would just crank and backfire. Now I changed back to a different set of oem injectors, and the car just backfire while its cranking.

Any Ideas? I really need my car running ASAP.

 

did u get the car tuned when it was turboed? cuz if u did then all you fuel injectors are still tuned to the turbo set up and your air/fuel ratio may be off try get ur ecu retuned or a new ecu

 

that's what I was gonna say...I don't have any experience with honda turbos but I helped a buddy build a motor for a RX-7 rotary and before we did a turbo it was backfiring and wouldn't run...turns out we had a turbo cpu...and everything was tuned for a turbo (on a natural aspirated)

 

I used apexi neo and reseted it. Im leaning towards a bad ecu. Or messed up timing belt. Do our timing belts ever skip?

 

yes the belt kan skip if its old or is cracking do to sum oil or sumthin being on the belt...and if your belt has over 90 thousand miles on honda factory suggests you change it

 

So I checked the timing belt and every thing is good. Tomorrow I am going to get a timing light and check the ignition timing.