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Does anyone know why my rpm needle tweaks out when i pass 6k rpm? This just started happening out of nowhere. I have a 00 Ek hatch with Jdm Itr motor. I checked all the grounds and i have no loose grounds. What else should I check? It ONLY does it when i pass 7k rpm. So when i redline first gear, in second gear its fine, then after it passes 7k rpm again, it keeps tweakin out. Could it maybe be my cluster? I have a Si cluster that I've had for about 5 years now.

Also I have NO cel

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infinitypro12

You have an ITR motor in a 00 Honda Civic harnessed with a different wiring scheme and ECU with an Si cluster, ha ha there are a few things that could be wrong. Sensors, ECU, or cluster would be the main offenders. If you can check with another cluster.

o_0

I'm using 00 Si harness running chipped p28 with itr base map. Well first i had this itr motor in my 96 ek hatch till i got rear ended, so i pulled the swap out and bought a 00 ek hatch. I changed my engine harness since 96-98 harness dont work. Everything works perfect on my 00 hatch but only problem is just the rpm. I had this si cluster on my 96 hatch and it worked perfect.

infinitypro12

Interesting indeed. Up, I have no answer, ha ha.

RCurioso88

Something similar happened to me. Whenever I floored it, the speedo will just go ape-****. I swapped an LSVTEC into my ej8 and what my problem turned out to be was my VSS. I swapped the metal gear (the one that goes down to the transmission) from a 'teg LS into my y8 VSS, which had a plastic gear. It fixed my problem. Good luck with it

o_0

yea speedo tweaks out cuz of vss. I dont think tach is messed by the vss. Someone told me since i have a 2000 civic, the dizzy sends signal to tach for the rpm, but I'm not 100% sure. They told me to maybe change the dizzy.

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z6htch

You are halfway correct. You need to replace the ICM, its located inside your dizzy. It sends a signal to your tach, and when they go bad, it will make your tach jump around giving you a wrong reading.

Its rectangular shaped and sits next to the coil. Hope this helps.