really bad cold starts on pump gas 93
If its SD-
Post primer enrich #1 and #2 are cranked too high. It is the the "MAFcomp" which works for fuel enrichment vs coolant temp. If that is stock its just the latencies are too high and it floods when its cold. You could still fix it in those tables but go the other way I suppose and take away from the stock values.
If its MAF-
Same still applies but I would check the min IPW limit as well to make sure its set correctly. Then I would doublecheck latency and/or trims.
Post primer enrich #1 and #2 are cranked too high. It is the the "MAFcomp" which works for fuel enrichment vs coolant temp. If that is stock its just the latencies are too high and it floods when its cold. You could still fix it in those tables but go the other way I suppose and take away from the stock values.
If its MAF-
Same still applies but I would check the min IPW limit as well to make sure its set correctly. Then I would doublecheck latency and/or trims.
Evolving Member
Joined: Jan 2013
Posts: 103
Likes: 3
From: South of Pittsburgh
From post #9 by Fast Freddie
That is because your fuel trims are no longer working, you cut your rear 02 wire... you need to go in and do the rear O2 delete and O2 sim in the rom...
Sounds like for you MP Evo the scaling/latencies of the injectors And/or IPW & ISCV may be off with the 2150cc. log what the coolant temp is at, and take away a decent amount of fuel on IPW cranking adder and add some more steps to the ISCV demand adder.
tweak the IPW cranking adder tables along with the ISCV Demand while cranking and ISCV post cranking demand adder.
Log the pulsewidth and isc to see if it needs more/less fuel/air for the setup.
Also what Rom are you both using? I've some tables for 9417 I could post to help with the startup if you don't already have them in your rom.
That is because your fuel trims are no longer working, you cut your rear 02 wire... you need to go in and do the rear O2 delete and O2 sim in the rom...
Sounds like for you MP Evo the scaling/latencies of the injectors And/or IPW & ISCV may be off with the 2150cc. log what the coolant temp is at, and take away a decent amount of fuel on IPW cranking adder and add some more steps to the ISCV demand adder.
tweak the IPW cranking adder tables along with the ISCV Demand while cranking and ISCV post cranking demand adder.
Log the pulsewidth and isc to see if it needs more/less fuel/air for the setup.
Also what Rom are you both using? I've some tables for 9417 I could post to help with the startup if you don't already have them in your rom.
From post #9 by Fast Freddie
That is because your fuel trims are no longer working, you cut your rear 02 wire... you need to go in and do the rear O2 delete and O2 sim in the rom...
Sounds like for you MP Evo the scaling/latencies of the injectors And/or IPW & ISCV may be off with the 2150cc. log what the coolant temp is at, and take away a decent amount of fuel on IPW cranking adder and add some more steps to the ISCV demand adder.
tweak the IPW cranking adder tables along with the ISCV Demand while cranking and ISCV post cranking demand adder.
Log the pulsewidth and isc to see if it needs more/less fuel/air for the setup.
Also what Rom are you both using? I've some tables for 9417 I could post to help with the startup if you don't already have them in your rom.
That is because your fuel trims are no longer working, you cut your rear 02 wire... you need to go in and do the rear O2 delete and O2 sim in the rom...
Sounds like for you MP Evo the scaling/latencies of the injectors And/or IPW & ISCV may be off with the 2150cc. log what the coolant temp is at, and take away a decent amount of fuel on IPW cranking adder and add some more steps to the ISCV demand adder.
tweak the IPW cranking adder tables along with the ISCV Demand while cranking and ISCV post cranking demand adder.
Log the pulsewidth and isc to see if it needs more/less fuel/air for the setup.
Also what Rom are you both using? I've some tables for 9417 I could post to help with the startup if you don't already have them in your rom.
If its SD-
Post primer enrich #1 and #2 are cranked too high. It is the the "MAFcomp" which works for fuel enrichment vs coolant temp. If that is stock its just the latencies are too high and it floods when its cold. You could still fix it in those tables but go the other way I suppose and take away from the stock values.
If its MAF-
Same still applies but I would check the min IPW limit as well to make sure its set correctly. Then I would doublecheck latency and/or trims.
Post primer enrich #1 and #2 are cranked too high. It is the the "MAFcomp" which works for fuel enrichment vs coolant temp. If that is stock its just the latencies are too high and it floods when its cold. You could still fix it in those tables but go the other way I suppose and take away from the stock values.
If its MAF-
Same still applies but I would check the min IPW limit as well to make sure its set correctly. Then I would doublecheck latency and/or trims.
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