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Problems w/p30 basemap in crome

Old 04-24-2007, 01:52 PM
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Default Problems w/p30 basemap in crome

HI,
I am running an Ls/Vtec setup w/ a chipped po6/chipped for vtec. Whenever I try to run a P30 basemap, my ignition breaks up and the car bogs when Vtec is engaged. I have Knock sensor,O2 sensor diabled as well as atmospheric pressure sensor in Crome V1.2. When I run P28 code, everything runs great. Any suggestions?
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Old 04-24-2007, 04:49 PM
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Default Re: Problems w/p30 basemap in crome

Run the P72 bin.
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Old 04-24-2007, 04:51 PM
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Default Re: Problems w/p30 basemap in crome

did you disable knock sensor in p30 code?
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Old 04-25-2007, 12:17 PM
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Default Re: Problems w/p30 basemap in crome

Originally Posted by chris
did you disable knock sensor in p30 code?
yes, I disabled the knock sensor. Its really wierd, I am using a totally stock P30 map, and as soon as it switches to high cam, I get all sorts of studdering and a dramatic loss of power.
P72 seems to work fine, do I just set the IAB RPM setting to something rediculously high value to disable them? (don't have them).
Is there any real big difference between the P72 and P30? If not, I really don't care, I am really new to tuning anyways. I just thought it was really odd that P30 hates me so bad, I guess nobody else has had this problem.
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Old 04-25-2007, 03:14 PM
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Default Re: Problems w/p30 basemap in crome

I use p30 for everything and have never ran into any problems



besides some minor ignition changes your not in any danager
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Old 04-25-2007, 08:48 PM
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Default Re: Problems w/p30 basemap in crome

I just got my wideband running properly and even with the P72 map I was running really,really lean (>17.5:1). So I added a ton of fuel to the map and got the afrs down to around a little below stoich. Maybe i'll try to add fuel to the P30 to see if the misfire goes away. Its just wierd that the P28 would run good, i thought the fuel maps would be far less agressive.
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Old 04-25-2007, 10:29 PM
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Default Re: Problems w/p30 basemap in crome

Originally Posted by reactone
I just got my wideband running properly and even with the P72 map I was running really,really lean (>17.5:1). So I added a ton of fuel to the map and got the afrs down to around a little below stoich. Maybe i'll try to add fuel to the P30 to see if the misfire goes away. Its just wierd that the P28 would run good, i thought the fuel maps would be far less agressive.
Use the fuel multiplier to compensate for the added displacement. LS displacement on P30 code will require at least 15% more fuel.
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Old 04-26-2007, 07:32 AM
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Default Re: Problems w/p30 basemap in crome

Originally Posted by snm95ls
Use the fuel multiplier to compensate for the added displacement. LS displacement on P30 code will require at least 15% more fuel.
Yeah, I should have thought of that..
I forgot to mention cylinders are also bored .020" over, so theres even more displacement..
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