rpm problem

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[email protected]
Posts: 240
Joined: Fri Dec 19, 2008 5:26 am
Car: 240SX SE

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heres the problem a friend of mine just did an sr20det swap on his 95 240sx, and the car is starting and drives but not past 2500- 3000rpms. The shop told him it was the maf so we had borrowed another guys maf on the same applcation and still salt...
We even tried the ecu's, but no go. Has anyone encountered this problem before, or know of any solutions,or ideas for this. The only thing that has been omitted is the exhaust system so its super loud thanks in advance for all assists and ideas.


CriderS14
Posts: 25
Joined: Fri Jan 01, 2010 4:42 pm
Car: 95 240sx

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check your intercooler piping, and your turbo piping to your MAF/air intake for leaks...

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PyR0NiAk
Posts: 3851
Joined: Sun Mar 01, 2009 4:29 pm
Car: S13 SR W/ T2 GT3071R .86AR, JWT S4 Cams, 810cc Injectors,Z32 MAF, JWT tuned ECU 87mm 9:1 Compression CP pistons, Manley Rods
Location: Ohio
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definitely sounds maf related... Check for codes... The how to is in the FAQ

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zachattack_5491
Posts: 641
Joined: Sun Jul 13, 2008 8:00 am
Car: Pignose S13 Redtop SR
Location: Albuquerque, NM
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Well if it's not the ecu or the maf it must be the wiring. Test for continuity between maf connector and ecu. Use the FSM, and the ecu pinout in the FAQ

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clever240sx
Posts: 1900
Joined: Tue Apr 26, 2005 3:38 pm
Car: Nissan 240sx

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Yes i believe it would be your maf wiring. I had this problem on a rb motor i had. When this problem happened to me i bought another maf and still had the problem. Then i traced the wiring and found 2 wires melted together. But who knows. GL!


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