Hi, I am having a problem with my 2002 s2000. It has an aftercooled comptech supercharger kit installed.

Recently my car died after an 8 mile drive and will not start til a couple hours later. I thought it was an overheating fuel pump so I replaced it with a new walbro 255. However after that was installed and the car started and warmed up, I turned the car off and let it sit then tried to start it again and the car just will not start. It cranks and sounds like it wants to start but it just dies. Please help I am running out of ideas!

103,XXX miles on the car
91 Octane
Comptech ESM
Comptech FPR

Other mods
Comptech Exhaust
Invidia Testpipe
Upgraded heat exchanger
*Spark Plugs* 7173 NGKs


UPDATE!

Changed spark plugs to NGK 2668s
I left the car idling for 30 minutes to check the car. At first it idled fine so I left it idling and I walked inside to eat. When I walked out I noticed the car was idling funny. I looked at the wideband and it was reading 11.9 instead of the 14.7 that it was at before I went inside. Now I noticed a check engine light got the code and it was P0108. My question is can this cause the serge in fuel being delivered? Or do I need the FPR rebuilt. Also what can cause the P0108 code which said something about high input detected?

 

what tuning solution? check for spark when car wont start. maybe a loose ground. also listen for the pump priming when it wont start.

 

Currently running the comptech esm and fpr. I hear the pump priming

 

This may or may not solve your problem, but it may help future aggravation. Those 7173 plugs your running are non resistor plugs and are not recommended, many of us have had varying degrees of electrical interference issues with those. Swap them out for some NGK 2668. Or if you still have your old 7 heat range plugs from NA, swap those in for now.

 

Sounds like possible fuel vapor lock?

3 things that will keep a motor from running (assuming timing isn’t a factor, which it won’t be by your description) No fuel, too much fuel, or no spark. Try and figure out which one of these it is first so we can direct our attention to the right area of troubleshooting.

 

will swapping in the old plugs help me see if the old plugs were causing problems with lets say the ecu? from the non resister plugs?

 

Yes this will either fix the problem or remove that variable so we can look elsewhere. Pay notice to the condition of the plugs you pull out. I dont know if you understand how to read plugs, but there may be some indicators from the plugs that could help pinpoint the issue. If its not too much trouble you might want to post pictures.

 

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Yes this will either fix the problem or remove that variable so we can look elsewhere. Pay notice to the condition of the plugs you pull out. I dont know if you understand how to read plugs, but there may be some indicators from the plugs that could help pinpoint the issue. If its not too much trouble you might want to post pictures.
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Thanks for the reply! I will remove the plugs and take pictures of their condition and post it. I will also toss in the stock plugs to see if it starts my car.

 

Sure thing. Will eliminate this as a variable at any rate.

 

Alrighty, I swapped back spark plugs but at first the car did no want to start either. I gave every sensor a little tap and made sure connections are good and leaned out the car a bit more on the FPR. When I tried to start my car again I held the throttle down to the floor and hurray it started! I noticed after it warmed up and I rev'd the engine the wideband goes to 10.5 and goes to 13 after I let off then slowly goes to 14.7-14.9 at idle. I decided to lean out the car more to see what happens. Now when I rev it it goes to 12 and then drops to 13.8 then just goes to 14.7. I noticed the car idles much better. Is it possible that so much fuel was getting dumped in that it causes my car to shut off?