ls1 bog after 1/4 throttle to wot
04-15-2007, 07:47 AM
#1
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ls1 bog after 1/4 throttle to wot hi guys, i have a 86trans am i swapped a 99 ls1 into got it out on the road and it wont move any were past 1/4 throttle it just bogs then if u holed it wide open it starts to brreak up a little, i have a code p1870- due to my stall can this effect it, and a maf sensor low code p102- i have a ported t.b. and maf , but this was all supposed to be tuned in with my pcmforless tune. the engine is otherwise stock, i also tried pluging in my friends maf but no change. i have a aeromotive afpr- the guage on theat wont go above 25psi. i have crakned the adjustment all over the place and it stays at 25psi. i think this is the problem- i have the returnin the right spot but is there a fuel rail side and line in side the directions say inlet on both sides. thanks any helps apperciated
04-15-2007, 07:54 AM
#2
TECH Fanatic
Yeah FPR needs to be 58psi on the ls1 for stock pcm.
You can recalibrate the IFR table for the lower pressure, but might need larger injectors to flow the right amount at the lower pressure. Thats if the pump can keep up anyway.
You can recalibrate the IFR table for the lower pressure, but might need larger injectors to flow the right amount at the lower pressure. Thats if the pump can keep up anyway.
