Hesitation at WOT now?
Oct 22, 2008, 12:22 PM
#152
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This issue can be very wide, if you guys have changed every possible parts and the hiccup/jerk is still there, try change the CAM SERSOR. If cam sersor didn't slove, change the CRANK SERSOR. Due to wear and tear, these sersors will give wrong feedback to the ECU.
I had this problem before, after I changed both the sersors it sloved my problem.
Give it a try.
I had this problem before, after I changed both the sersors it sloved my problem.
Give it a try.
Last edited by 8MR; Oct 22, 2008 at 12:24 PM.
Dec 22, 2010, 10:55 PM
#154
I now have this problem, could it be a slipping clutch??? When ever I go WOT or near WOT at anything abover 3000RPM, my revs hesistate and drop about 500RPM and then continue all the way to redline no problem. For example I'll go WOT at about 4,000RPM and then the revs drop to 3,500 or 3,600RPM and then climbs towards redline with nofurther problems? Is this a slipping clutch or am I pulling timing?
I need help. I am at a loss. I cannot figure it out. I am having the EXACT same issue as the quote above. Does ANYONE know how to fix this? PLEASE!!
Feb 9, 2011, 02:47 PM
#157
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I fixed my issue today. I put in new spark plugs (NGK BPRES) and did the normal roll-on WOT run in 2nd and 3rd and had no issues. My problem was similar to the hesitation mentioned herein. I had been running my spark plugs since May 2009, with about 15k miles put on since then.
Before i installed the new spark plugs i dialed back my boost controller about 2psi and that didn't help it. So my lesson learned is try the most logical choice first (spark plugs) and start eliminating symptoms. This worked for two drives today, so we'll see if the problem resurfaces in the coming days. But right now my hesistation is gone.
Oh yeah, 111k on the odo, OEM stock clutch, flywheel, turbo and exhaust. I only have a K&N drop in and a boost controller (and gauge). So i am not asking a lot of my Evo.
Before i installed the new spark plugs i dialed back my boost controller about 2psi and that didn't help it. So my lesson learned is try the most logical choice first (spark plugs) and start eliminating symptoms. This worked for two drives today, so we'll see if the problem resurfaces in the coming days. But right now my hesistation is gone.
Oh yeah, 111k on the odo, OEM stock clutch, flywheel, turbo and exhaust. I only have a K&N drop in and a boost controller (and gauge). So i am not asking a lot of my Evo.
Feb 9, 2011, 06:28 PM
#158
I fixed my issue today. I put in new spark plugs (NGK BPRES) and did the normal roll-on WOT run in 2nd and 3rd and had no issues. My problem was similar to the hesitation mentioned herein. I had been running my spark plugs since May 2009, with about 15k miles put on since then.
Before i installed the new spark plugs i dialed back my boost controller about 2psi and that didn't help it. So my lesson learned is try the most logical choice first (spark plugs) and start eliminating symptoms. This worked for two drives today, so we'll see if the problem resurfaces in the coming days. But right now my hesistation is gone.
Oh yeah, 111k on the odo, OEM stock clutch, flywheel, turbo and exhaust. I only have a K&N drop in and a boost controller (and gauge). So i am not asking a lot of my Evo.
Before i installed the new spark plugs i dialed back my boost controller about 2psi and that didn't help it. So my lesson learned is try the most logical choice first (spark plugs) and start eliminating symptoms. This worked for two drives today, so we'll see if the problem resurfaces in the coming days. But right now my hesistation is gone.
Oh yeah, 111k on the odo, OEM stock clutch, flywheel, turbo and exhaust. I only have a K&N drop in and a boost controller (and gauge). So i am not asking a lot of my Evo.
Feb 14, 2011, 08:42 AM
#160
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Having Same issue and I replaced my clutch 450miles ago so I don't think it's my clutch .spark plugs,injectors or fuel pump may be issues ? Really started happening while I was tuning .might load the old map on and see if the problems still there
Feb 14, 2011, 08:56 AM
#161
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I have had the same issue with my car and it has been cold here (low teen's to 30's). I've dialed back my boost to 21 lbs from 28 and it still does it, so I will change out my plugs today to see if it helps. Thanks for the info.
Feb 17, 2011, 02:40 PM
#162
I started having problems with boost after I put on my tomei. That turbo does not like small intercooler piping. I upgraded the pipes and intercooler and it got better, then I started having problems going over 15psi. I looked for boost leaks, changed bovs...nothing. Today I pulled the plugs and the gap looked 2x as big as the new ones. I put on the NGK BPR7EIX ( same plug were already on) and the boost problems went away! No more hesitation, no problems building boost. It's always a good idea to pull plugs and compare gap.
N
N
Feb 17, 2011, 02:54 PM
#163
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I started having problems with boost after I put on my tomei. That turbo does not like small intercooler piping. I upgraded the pipes and intercooler and it got better, then I started having problems going over 15psi. I looked for boost leaks, changed bovs...nothing. Today I pulled the plugs and the gap looked 2x as big as the new ones. I put on the NGK BPR7EIX ( same plug were already on) and the boost problems went away! No more hesitation, no problems building boost. It's always a good idea to pull plugs and compare gap.
N
N
Feb 17, 2011, 06:32 PM
#164
I started having problems with boost after I put on my tomei. That turbo does not like small intercooler piping. I upgraded the pipes and intercooler and it got better, then I started having problems going over 15psi. I looked for boost leaks, changed bovs...nothing. Today I pulled the plugs and the gap looked 2x as big as the new ones. I put on the NGK BPR7EIX ( same plug were already on) and the boost problems went away! No more hesitation, no problems building boost. It's always a good idea to pull plugs and compare gap.
N
N
clutch was installed.
Sep 20, 2012, 04:08 PM
#165
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Guys help please my car I put my leg on the gas on gear 3 it can't pass 3.5rpm but once I take my foot of the gas and press it again it picks yo the rpm.what could be the problem