RPM wont pass 5800 =/
10-09-2010, 12:01 PM
#1
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RPM wont pass 5800 =/
guys, i tried my best but i cant find anything, my 01 cl-s rod bearing broke, found metal shavings in oil so i replaced engine with 03 cl-s with 31k bought it for 550 warranty for 6 months blah blah blah...
i have a problem, my car won't go beyond 5800rpm, not only will it not pass, but if im flooring it, it wont shift up until i let go of gas, then it shifts up, any ideas? oh, i dont think vtec kicking in cuz i dont hear my roar =/ oil level is fine, no CEL, im changing spark plugs after class today but can anyone help me???
someone said its not vtec solenoid because even without vtec i should reach 6800... and like i said, no CEL
i have a problem, my car won't go beyond 5800rpm, not only will it not pass, but if im flooring it, it wont shift up until i let go of gas, then it shifts up, any ideas? oh, i dont think vtec kicking in cuz i dont hear my roar =/ oil level is fine, no CEL, im changing spark plugs after class today but can anyone help me???
someone said its not vtec solenoid because even without vtec i should reach 6800... and like i said, no CEL
10-09-2010, 04:00 PM
#3
Whats up with RDX owners?
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Its slow around here on Saturday afternoons.
Your car is definitely in limp mode. Was this motor out of a CL-S auto or manual?
Your car is definitely in limp mode. Was this motor out of a CL-S auto or manual?
10-09-2010, 04:10 PM
#4
BTW here are some links to threads stating the same issue, maybe they have answers you need.
https://acurazine.com/forums/1g-cl-1997-1999-56/cant-rev-over-5000-rpms-790759/
http://www.acura-cl.com/forums/showthread.php?t=484665
http://www.corvette-guru.com/modules...431&menumode=0
Last edited by brian6speed; 10-09-2010 at 04:20 PM.
10-09-2010, 10:26 PM
#5
Regional Coordinator (Texas)
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sure sounds like ur vtec is not kicking in. check the wiring harness and make sure the plug is connected.
the rpm will stay at around there and will go up, but super slowly, because the motor is not sucking in enough air to produce more power.
i was experimenting with my old 4 banger accord a while back and i had disconnected the vtec solenoid and it caused the exact same problem.
the rpm will stay at around there and will go up, but super slowly, because the motor is not sucking in enough air to produce more power.
i was experimenting with my old 4 banger accord a while back and i had disconnected the vtec solenoid and it caused the exact same problem.
Last edited by nspec_ya4; 10-09-2010 at 10:29 PM.
10-10-2010, 12:54 PM
#7
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someone said it might be the map sensor so ima switch that out, luckily i kept my old intake manifold which has the pcm on it too, thats what mechanic said, i dunno
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10-10-2010, 04:28 PM
#8
Ultra Negro
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Sounds like the wrong ecu to me, they might have not used the right ecu, I know the old be series engines were like that if you swapped a manual engine into an automatic car they would have the same issues.
I say wrong ecu, but I could be wrong.
I say wrong ecu, but I could be wrong.
10-11-2010, 11:20 AM
#9
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im starting to think its my vtec solenoid because the engine will lose major power going at high rpms with insufficient amount of air going in because the valves r closing way to quick so it cuts off knowing not enough air is coming in
10-11-2010, 03:38 PM
#11
Three Wheelin'
5800 RPM is pretty high for limp mode, isn't it? Unless there's two different rev limiters depending on the seriousness of the problem. I've only ever had a 3500 RPM limiter. The cars actually doing it right now from a faulty CKP.
10-11-2010, 06:32 PM
#13
Whats up with RDX owners?
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Usually rod bearings "spin", which causes rod knock. Most of the time thats due to an over rev or insufficient oiling.
10-12-2010, 12:42 AM
#14
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oh no, it has all the power of a cl-s... i bought tl-s 2003 ecu... installed only to realize i needa program the transponder, will keep updating!
10-12-2010, 01:27 PM
#17
Whats up with RDX owners?
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10-15-2010, 09:25 AM
#20
Regional Coordinator (Texas)
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dude just jump your vtec solenoid and put a switch on it. as soon as you get to 5800 rpm turn it on and see if it makes a difference. it will only take you like 10 minutes to set that up.
10-15-2010, 12:52 PM
#21
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ok... i'll try that! unfortunately i dont know where the solenoid is lol but i will find it!!
10-16-2010, 01:23 AM
#23
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I thought V-tec wouldn't have anything to do with fuel cut?
still sounds like and ECU problem, try a cl-s ecu first before you jump anything since all you have to do is plug it in.
still sounds like and ECU problem, try a cl-s ecu first before you jump anything since all you have to do is plug it in.
10-24-2010, 12:16 PM
#25
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so im drivin home last night when my car actually goes into limp mode (3k-4k cut off) turned off car, this morning i drive car to autozone (limp mode gone) and scan to get a p1259 vtec solenoid/switch malfunction... grrr!! i kinda figured its vtec because if not enough air coming in at high rpm (which is what vtec takes care of) the ecu should cut off fuel because... not enough air coming in!! valves r shutting too quick and vtec aint keepin them open!
10-24-2010, 12:30 PM
#26
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yes it does, at exactly 5800 no more no less... but like i said i got a p1259 vtec solenoid CEL when it went into limp mode but shut off engine n turned it back on and it drives normal (5800 normal, not the 6800 normal!)
so just take the two wires and connect them with a switch? should i unplug the sensor?
and is this the part i need?
014 36171-P8E-A01 SOLENOID ASSY.
in the illustration, its literally right above the oil filter!
and is this the part i need?
014 36171-P8E-A01 SOLENOID ASSY.
in the illustration, its literally right above the oil filter!
Last edited by black_type-s; 10-24-2010 at 12:31 PM. Reason: added something
10-24-2010, 12:42 PM
#28
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10-24-2010, 12:58 PM
#29
Suzuka Master
driving at RPMs 5800+ will increase your chances for your tranny to die. It is not to say that high RPMs is the cause, but it certainly increases heat more than it typically does in critical parts that fail. Yes, you will go to limp mode and make it home.
10-24-2010, 12:58 PM
#30
Regional Coordinator (Texas)
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yes it does, at exactly 5800 no more no less... but like i said i got a p1259 vtec solenoid CEL when it went into limp mode but shut off engine n turned it back on and it drives normal (5800 normal, not the 6800 normal!)
so just take the two wires and connect them with a switch? should i unplug the sensor?
and is this the part i need?
014 36171-P8E-A01 SOLENOID ASSY.
in the illustration, its literally right above the oil filter!
so just take the two wires and connect them with a switch? should i unplug the sensor?
and is this the part i need?
014 36171-P8E-A01 SOLENOID ASSY.
in the illustration, its literally right above the oil filter!
if i get time, i'll look into the etm and see which one is power.
10-24-2010, 01:05 PM
#31
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I didnt knew our vtec solenoid had two wires. I guess find out which one is power. Im guessing the other one must be for the signal because it gets ground from motor directly. If that is the case, then u need to figure otu which one is the power wire and and jump it when the rpm reach about 5500.
if i get time, i'll look into the etm and see which one is power.
if i get time, i'll look into the etm and see which one is power.
10-24-2010, 01:06 PM
#32
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dully noted!
10-24-2010, 02:49 PM
#33
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Isn't it true if you're oil level is too low, VTEC won't kick in causing the problem you are describing?
I had this problem on my Integra, one day it randomly cut power when I hit the VTEC point and the CEL came on, came to find out my engine oil was too low.
I had this problem on my Integra, one day it randomly cut power when I hit the VTEC point and the CEL came on, came to find out my engine oil was too low.
10-24-2010, 05:27 PM
#34
Regional Coordinator (Texas)
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run a power wire with a switch to the solenoid and have the car in second gear on the freeway/main road and when ur rpm reaches that level, turn the switch on to power the solenoid and see if it the vtec kicks in.
true.
10-25-2010, 12:56 PM
#35
could it be that you ecu does not "know" that you are in gear.... maybe ecu is reading tranny in Park or Neutral and cutting fuel for safety (as if you were parked)... is everything connected propperly from tranny?
10-25-2010, 01:56 PM
#36
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someone said that mechanics sometimes make a mistake by switching the vtec solenoid plug with the oil pressure plug! ima swap them real quick see whats up!!
you mean the neutral safety switch might be bad? id highly doubt it because the D5 lights up, a friend told me once that if D5 doesnt show, ur neutral safety switch wacked!
11-06-2010, 06:50 PM
#40
Senior Moderator
yes the car will fuel cut at the 4800 vtec change over point as the oil level gets too low ... his car is in limp mode the oil would be a 4800 rpm fuel cut ... limp mode is 5500 if i rememberp same as if the car were in neutral but 55 58 easy enough to be mistook for same thing