TurboTiger
09-16-2015, 09:23 PM
I've been a member for over a year and I've completed my SR20 swap by using this forum as a resource. It's been a long journey and I'm now to the point where I'm running out of ideas on how to get it started. Here is some background information and a few answers to some of the more common questions I see repeatedly asked in threads like this.
The car is a 90 S13 (5 spd) and I'm swapping in a redtop. The car was running and driving when it was parked it 3+ years ago when the KA was pulled. Stock turbo, aftermarket manifold, FMIC and an HKS BOV.
Wiring:
- New OEM harness (I did the wiring myself. No connectors, only soldering was used)
Fuel:
- Injectors were sent out to be cleaned, and tested. I've also installed new o-rings.
- New OEM fuel rail was installed due to a slight bend in the original
- Fuel is now 4-5+ months old. I've added a few gallons about a month ago.
- Half a bottle of seafoam was recently added to stabilize the fuel. A suggestion someone gave me.
- Stock fuel pump. I do have walbro on it's way but I'm under the impression it "should" start with the stock pump.
- I've pulled the fuel rail off with the injectors installed. Turned over the key to pressurize the fuel rail (numerous times) and checked for any leaks. I also used a spare CAS and turned it slowly until the injectors fired. I did notice ALL four fire at once but I've read this is normal during startup.
- New fuel filter (just changed it again 4-5 months ago)
- Swapped out the fuel pressure regulator for another used one. No difference was noticed.
Ignition:
- Q45 ignitor chip (tried to save a few bucks, wondering if I should source an SR20 chip)
- New plugs (multiple times)
- SOHC MAF
- Stock ECU (I do have a spare that I've used)
- No ECU codes. ECU reads 55
- All grounds were sanded and cleaned
- Spark on all plugs. Not sure how "strong" it is as I have nothing to compare it with.
- Timing http://zilvia.net/f/showthread.php?t=612442
- Battery. Old one has finally crapped out. I'm currently testing it with a battery (850 CCA) out of my Tacoma.
- Plugs gapped to .30 (I've swapped out at least 4 sets after months of troubleshooting)
Compression numbers were good when compared to everything I was reading at the time. I have compression, fuel, and spark. Timing appears to be correct (please verify linked thread).
So I'm stumped and I hope it's something simple I've overlooked. The engine will turn over and will sputter once and a while. If I pull the fuel pump fuse and let it turn over for a bit it will eventually start to pop, bang and I'll see smoke from the burnt fuel. Put the fuse back in and in the beginning it will sometimes sound as if it's about to start, but doesn't.
When I do have an extra pair of hands (very rare), I've had someone turn the car over while I slowly turn the CAS. I get the best results when left in the "stock" position or slightly turned clockwise (when facing the CAS)
This is my first swap but I'm comfortable around cars and have done most of my own mods/maintenance in the past but I'm nowhere near as knowledgeable any many of you on zilvia. Troubleshooting electrical things is definitely my weak point.
At this point I feel as if EVERYTHING is suspect so if you think I should verify something basic I have no problem doing so. Thanks in advance for any help you guys can offer! :coolugh:
The car is a 90 S13 (5 spd) and I'm swapping in a redtop. The car was running and driving when it was parked it 3+ years ago when the KA was pulled. Stock turbo, aftermarket manifold, FMIC and an HKS BOV.
Wiring:
- New OEM harness (I did the wiring myself. No connectors, only soldering was used)
Fuel:
- Injectors were sent out to be cleaned, and tested. I've also installed new o-rings.
- New OEM fuel rail was installed due to a slight bend in the original
- Fuel is now 4-5+ months old. I've added a few gallons about a month ago.
- Half a bottle of seafoam was recently added to stabilize the fuel. A suggestion someone gave me.
- Stock fuel pump. I do have walbro on it's way but I'm under the impression it "should" start with the stock pump.
- I've pulled the fuel rail off with the injectors installed. Turned over the key to pressurize the fuel rail (numerous times) and checked for any leaks. I also used a spare CAS and turned it slowly until the injectors fired. I did notice ALL four fire at once but I've read this is normal during startup.
- New fuel filter (just changed it again 4-5 months ago)
- Swapped out the fuel pressure regulator for another used one. No difference was noticed.
Ignition:
- Q45 ignitor chip (tried to save a few bucks, wondering if I should source an SR20 chip)
- New plugs (multiple times)
- SOHC MAF
- Stock ECU (I do have a spare that I've used)
- No ECU codes. ECU reads 55
- All grounds were sanded and cleaned
- Spark on all plugs. Not sure how "strong" it is as I have nothing to compare it with.
- Timing http://zilvia.net/f/showthread.php?t=612442
- Battery. Old one has finally crapped out. I'm currently testing it with a battery (850 CCA) out of my Tacoma.
- Plugs gapped to .30 (I've swapped out at least 4 sets after months of troubleshooting)
Compression numbers were good when compared to everything I was reading at the time. I have compression, fuel, and spark. Timing appears to be correct (please verify linked thread).
So I'm stumped and I hope it's something simple I've overlooked. The engine will turn over and will sputter once and a while. If I pull the fuel pump fuse and let it turn over for a bit it will eventually start to pop, bang and I'll see smoke from the burnt fuel. Put the fuse back in and in the beginning it will sometimes sound as if it's about to start, but doesn't.
When I do have an extra pair of hands (very rare), I've had someone turn the car over while I slowly turn the CAS. I get the best results when left in the "stock" position or slightly turned clockwise (when facing the CAS)
This is my first swap but I'm comfortable around cars and have done most of my own mods/maintenance in the past but I'm nowhere near as knowledgeable any many of you on zilvia. Troubleshooting electrical things is definitely my weak point.
At this point I feel as if EVERYTHING is suspect so if you think I should verify something basic I have no problem doing so. Thanks in advance for any help you guys can offer! :coolugh: