About to set my car ablaze.
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
Ok man. I assumed you already went the ECU checking route. Seems like not. A compression check would be fine because it's basically non-destructive.
You need to log all of your sensors at startup and during the minute that the car stays on. There is something fishy. I would wait for the cable--if it is a AEM V1, go get a USB to serial and plug that sucker up to the laptop, install/download the software, and verify all settings, but most of all, log everything.
CAM SENSOR
CRANK SENSOR
IAT
MAP
INJECTOR PULSE WIDTH
BATTERY
KNOCK
TIMING ADVANCE
FUEL/WBO2
...to name a few. The answers will become apparent.
You need to log all of your sensors at startup and during the minute that the car stays on. There is something fishy. I would wait for the cable--if it is a AEM V1, go get a USB to serial and plug that sucker up to the laptop, install/download the software, and verify all settings, but most of all, log everything.
CAM SENSOR
CRANK SENSOR
IAT
MAP
INJECTOR PULSE WIDTH
BATTERY
KNOCK
TIMING ADVANCE
FUEL/WBO2
...to name a few. The answers will become apparent.
Agreed. I just ordered the cable as Radioshack didn't carry it in the store and downloaded the software. I created this thread to verify timing so that I can accurately assume that the problem lies in the tune. I have a few tuners extremely local and hopefully this week one is going to come out and give me a hand with the logging.
Log everything like the post above, my money is on something is not put back, or put back incorrectly.
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
Most helpful thing said yet. Thank you.
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
As an update to the rest of people helping, I'm having a professional double check the cam install and take a look at the tune.
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
I have a big update!!!
-I verified the timing on the crank pulley. Everything was lined up at 0.
-I did a compression test: 185 185 195 185.
-The plugs were literally soaked. I made sure I dried them off before reinstall.
-I retarded both the intake and exhaust cam 4 degrees: Started right up and ran great.
-I fixed my AFR gauge. At 1500rpm's it was reading 13.6, at 3000 rpms reading around 15.5. They were all over the place. I really think its tune related.
-I put the cams back to 0, and it started right up. It ran great.
-At 1500rpms, vacuum is at 4. At 3000rpms, vacuum is at 15.
-AFRs with the cams at 0 were 1500 were 13.7. 3000rps they were at 13.7 as well.
-I verified the timing on the crank pulley. Everything was lined up at 0.
-I did a compression test: 185 185 195 185.
-The plugs were literally soaked. I made sure I dried them off before reinstall.
-I retarded both the intake and exhaust cam 4 degrees: Started right up and ran great.
-I fixed my AFR gauge. At 1500rpm's it was reading 13.6, at 3000 rpms reading around 15.5. They were all over the place. I really think its tune related.
-I put the cams back to 0, and it started right up. It ran great.
-At 1500rpms, vacuum is at 4. At 3000rpms, vacuum is at 15.
-AFRs with the cams at 0 were 1500 were 13.7. 3000rps they were at 13.7 as well.
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
Thanks man, so am I! I still don't fully understand why it decided to start today, as I didn't really change anything besides cleaning the load of carbon off of the plugs. I think the car was extremely loaded up from me trying to start it and failing, as it puffed tons of carbon for a few minutes, then it finally went away and ran very smooth.
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