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Go Back   REVscene Automotive Forum > Technical Discussion > Maintenance, Engine & Driveline Tech
NEED HELP with my RB20DET ASAP NEED HELP with my RB20DET ASAP
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Maintenance, Engine & Driveline Tech This forum is brought to you by The Speed Syndicate (TSS) in Burnaby.
Discussion of maintaining your engine, transmission, differentails, rear ends, and mods associated with "driveline" parts..

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Old 10-16-2011, 08:36 PM   #1
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NEED HELP with my RB20DET ASAP
i got a skyline with blown head gasket, car was parked for few weeks and i decided to swap whole engine.

i got the same rb20det engine, the guy said he rebuilt it recently.

After a swap cur runs but it takes like 10-20 seconds to start it and it has no power to go and running rich. Waaay too rich.
Compression is fine also there are no vacuum leaks.

i don't know if ECU was flashed before or not but injectors were stock on previous engine so i don't think it was tuned..
I need someone who can check all vacuum lines again and help me to troubleshoot/fix the problem.
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Old 10-17-2011, 09:58 AM   #2
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20 years experience Skyline mechanic in house. Give us a ring.
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Old 10-21-2011, 01:42 PM   #3
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sounds like you may have a bad engine temp sensor Nissan ECU's can be temperamental if they don't see a engine temp that makes sense I don't recall what the right resistance reading should be at 15C but I'll bet it's a bit off and just running off warm up and cold temp fueling tables
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