s14 auto to manual swap cuts off 2500 rpm

[kaaos]

i blew my motor and threw a 5 speed in as well. now when i rev it it acts like its hitting a rev limiter or fuel cut off at 2500 rpm. wtf is wrong.
also i deleted every egr and emissions item i could including pcv. i welded the ports shut. so i dont think it has a leak.

[adrians_s13]

sounds like mafs man. Usually when theres something wrong with the mafs, it goes into a "safe mode" or something that usually won't let you rev past 3k or something. Check the wiring.

[SexPanda]

yeah that sounds like its in safe mode. Swing down to Oreilly's and have them put that shiznit on the code reader.

Easiest way to find the problem.

[kaaos]

k well i got a p1105 code map / barometric pressure switch solenoid valve do i need to fix this too?
p1441 ev/v bypass valve which i think is just emissions
p0105 absolute pressure sensor circuit wtf is this?
p1605 a/t comm line yay no more a/t
p0100 mass air or volume air flow circuit this is probally the culprit
and a few more evap system codes. should i be worried about any of the other codes. trying to troubleshoot the mass air system now

[jdm538]

yup thats a maf issue find a friend with a maf and diagnose.

[Saviorsoul]

MAFS. Find someone parting out there 240 and buy they're MAF, because a new one is EXPENSIVE

[wiggafly808]

+1 on mafs.. i had the same issue, but only intermittently.. picked up a used maf, fixed the problem.

[Jonnyblaze]

+2 for maf.. happened to me.. replaced it.. badda bing badda boom