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Help Please!! Startup/Idling Problems

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Shane2GSX

15+ Year Contributor
423
24
Oct 13, 2005
Louisville, Kentucky
I've been having problems starting/idling my car since installing BC 272/272 Cams. Immediately after doing the cams, it would start and run, but once it got cold for the first time, it didn't want to start. I could get it to roll over like it wanted to start, but it just wouldn't. It also smelled very right. (I am on stock fuel, btw)

I finaly got link in, turned the fuel down (since it seemed rich), changed the plugs (which smelled like fuel), and managed to get it to start and run. Last night, I adjusted my TPS to .63 volts via DSMLink. Now, once again, it does not want to start or run. Plus, it pops and backfires. The only thing that has remained consistent, is the fact that once warmed up, it will run
but it wants to idle surge.

Here are the things I've done, that have not corrected the problem:
Checked Timing 4 times
Changed MDP (MAP) Sensor (It was broken)
Compression Check (150 across the board)
Changed plugs
Adjusted TPS to .63 Volts via DSMLink
Flipped CAS 180*
Turned fuel down
Tried playing with 50 Hz slider, both ways +-10

What else can I do??? Can anyone give me any indication as to what's wrong in my logs??
 

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You timing guys were right!!

I checked the timing again, very carefully and compared to another car. It looked like my car was in time, but the two Cam sprockets were lined up a tooth too high. Redid the timing last night, and the car runs PERFECT!! Fixed ALL of my problems.

The car no longer smells like unburned fuel, starts great, doesn't idle surge (after properly adjusting the BISSS), and doesn't buck. I'm also now getting vacuum of 14-15 hg at 750 RPM.

Thanks to those on here that tried to help me with this. Glad to finally have it solved..
 
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