Question about 1992 Pontiac Bonneville

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My hondacivic 1.6 vtec is misfiring when taking off then it smooths out a bit when sitting still wont rev past 4 rpm

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1 Answer

You have a misfire, so you don't need someone to
tell you to diagnose what you already know you have

It won't rev past 4,000 rpm, because it is programmed that way,
just so you don't & ruin the engine

If you want to play--- get a car from the 1960's & have some fun

Posted on Oct 09, 2012

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6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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mitch vanier

  • 21 Answers

SOURCE: idles rough,stalls ,on the road

could be two things, for one are any dash lights on? well it could be your egr or o2 sensor

Posted on Nov 30, 2010

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1 Answer

Hyundai sante fe 2007 2.2crdi wont rev past 3000 rpm


If your standing still in park it wont rev past 3000 rpm as its got a limiter on it And only revs past 3000 rpm in drive on the move.

Sep 27, 2016 | 2007 Hyundai Santa Fe

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I took my 200 honda accord to auto zone to get a diagnostic done. the code was p1259. the ticket printout listed 4 things that would be probable cause. 1.open or short circuit condition 2.vtec solenoid...


CHECK VTEC SWITCH OIL PRESSURE.SHOULD BE 50 PSI @3000 RPM FOR THE S2000 OIL PRESSURE SHOULD BE 85 PSI @ 3000 RPM. IF OIL PRESSURE OKAY HAVE TO BE EITHER VTEC SWITCH FAULTY OR VTEC SOLENOID HAS FAILED.SOME TIMES PCM HAS FAILED TO THAT CONTROL CIRCUIT.

Apr 12, 2011 | 2000 Honda Accord

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I have a 2003 mustang cobra with the 4v dohc v8 supercharged. It idles perfectly. when i rev up the engine it sounds great, but when i take off and get into second and third gear it wont go past 4000...


Check the prongs on the #1 coil to see if it is crackd if it is left alone it will eventually turn to a multiple misfire, also take the coil off to make sure nothing is shorting out.

Jan 16, 2011 | 2003 Ford Mustang

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Volvo s60 is still misfiring at 3000-4000 rpm. I changed the spark plugs and checked the coils and fuel injectors all good. Can't seem to find the problem. Any help! Also, my check engine light turns off...


Has anyone checked your "rev limiter" ? It is a sensor that will not allow you to "rev" your engine past a cetain RPM.
It is usually only "on" when you are in PARK, but it is something to consider.
Please let me know what you find.

Feb 09, 2010 | 2001 Volvo S60

1 Answer

The car loos power in 6000 rpm


from what i have read 2 things, dont change yer own oil any more, and what you did could while is not good it probably didnt hurt you. Your problem is a little hard to understand but how high do you want to take yer rpms? I would imagine that there is a governor somewhere that prevents you from blowing yer engine. Maybe a rev limiter? I dont understand why you wanna go past 6k. unless you simply dont like the motor in your car.

Sep 12, 2009 | 2001 Pontiac Grand Am SE

2 Answers

Honda s2000, 2001 loose of power when vtec engages I get to around 6000 rpm it sputters continues to 9000 rpm.No Engine light or codes. Vtec is working . I removed the solenoid and cleaned, replaced the...


If youe engine is stock - the VTECH should kick in at 5000-5500RPM.
Your car should be Dyno set. Every vehicle is different.

The 5000-5500 is good because if you were to set it down low it would almost be like having a non-vtec motor. If you set it at 6000, and your redline is 7000 then its not going to realy do anything. Again, almost like having a non-vtec motor.

PIC1
PIC2
PIC3

The first two pics are examples of where VTEC should be set earlier to smooth out the curve - the latter is an example of where VTEC should be set later to smooth the line out. You want the least noticeable transition from the non-VTEC to the VTEC lobes on your cam. That's when you'll make the most power at every point in the rev range.

Too early and your engine stumbles while it tries to get into the efficiency range of your big lobe- Too late and you have a huge jump where you could have had more power a few hundred rpm sooner.
The first graph had the VTEC set later (4400rpm) so that I wouldn't be jumping in and out of VTEC all the time on the highway, the second is the stock S2000 (6000rpm) that Honda sets so that the customer can feel the VTEC kick in (sells cars because it's cool, but isn't the best for max power), and the third was just set too early because it wasn't a custom tune.

Hopefully that gives you a more visual explanation of why you want to set your VTEC crossover point on a dyno.

Another suggestion is to unplug the IACV (Idle Air Control Valve) and see if the bog persists.

Finally - you may have a clogged cat. Remove the plug for the Throttle body Sensor and check again for the bog.

If no bog under this condition - your cat must be gutted, removed, or replaced.

Thanks!!

Aug 23, 2009 | Honda S2000 Cars & Trucks

2 Answers

1987 MAZDA RX7


1. im not sure what the ATF trick is 2. yes that is correct 3. no theres a few different things it could be. it most certanly could be though. it doesnt take long for a rotary engine to get messed up if its sitting. take it to a mechanic to get a compresion test that will help you determine whats up.

Feb 08, 2009 | 1987 Mazda RX-7

1 Answer

Vtec 2.2L misfires


misfires wont always trigger a OBDI code but take your injector out and have it bench tested at local parts store or repair center assuming you have spark in that cylinder, cheaper usually but if it needs replacement heres some great places to get cheap replacement
www.ebay.com
www.godspeedmotorsportsonline.com
peach street auto 18003652341

Jan 07, 2009 | 1994 Honda Accord

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