My Prelude has hard starting issue

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01-29-2015, 03:34 PM

#26

thirsk66

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Re: My Prelude has hard starting issue

[QUOTE=holmesnmanny;50181838]Well lets not count your issue fully diagnosed yet. This is just an opinion as to a likely reason for your issue.

[/QUOTE

I can agree with that completely. I am almost certain though that it is somewhat a tuning issue. I really wish there were dyno tunes out there for sale by good tuners that took out the the dyno part since it is pretty pricey. But then again every engine and setup is different.

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01-29-2015, 04:51 PM

#27

holmesnmanny

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Quote:

Originally Posted by thirsk66

I can honestly believe that the tune is running rich at start-up and I think the entire tune is a mess. I just threw in my P5M-L03 ecu which is the stock ecu that came with my car, and it ran the car a heck of a lot smoother then the chipped obd1 ecu, so I will definitely have to get my car dyno tuned. This is just sad that the map on my obd1 ecu is not that great at all, but I am sure that is why they are called a base map since those are just something to start from before hitting the dyno for a full tune.

I somehow missed the part about you running the stock ecu and it running better. It sounds likely we are on the right track. Keep us updated.

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01-29-2015, 06:25 PM

#28

thirsk66

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Re: My Prelude has hard starting issue

Quote:

Originally Posted by holmesnmanny

I somehow missed the part about you running the stock ecu and it running better. It sounds likely we are on the right track. Keep us updated.

Hey no worries there is a lot of details in this thread. And it runs better with the stock ecu in. But I also just tested out my PCD-014 euro-r ecu and that engine pulls hard all the way through. It just idles like crap since I ran it momentarily with the two wire iacv and no egr valve hooked up. I swear if someone could extract the tune on the jdm ecu somehow I would throw that in my chipped ecu any day of the week.
i will keep you updated I will go to the dyno soon and pray this tuning issue gets better.

Last edited by thirsk66; 01-29-2015 at 06:42 PM.

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