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b series wont rev past 4000

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Old Aug 6, 2009 | 10:13 AM
  #31  
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Default Re: b series wont rev past 4000

you need to get the vacuum lines fixed. If i read correctly, about 6 posts up you said the EVAP canister wasn't even hooked up. If you're having trouble with the vacuum lines, there SHOULD be a chart on the underside of your hood, that shows where each line runs to. Don't want all those fumes in your engine compartment, or even in your car. If you have a Haynes manual, that will show them too. Also, replace your ECT sensor and thoroughly bleed your cooling system. To do so, pull your car on ramps to elevate the front end. Loosen the bleeder on the water neck, and add coolant until it comes out of the hole on the bleeder. Then, tighten down the bleeder screw and run the engine at idle with the Radiator cap off, for about 3 fan cycles. that should help with your idle also, if there was air in the coolant line to the IAC or Fast Idle valve. If that does not fix it, you're most likely looking at an IAC valve or your Fast Idle Thermo Valve. Both on the TB.
Old Aug 6, 2009 | 10:50 AM
  #32  
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Default Re: b series wont rev past 4000

Originally Posted by wright
The first thing is to clear any and all codes and to make sure that they will not come back on. meaning hook all of the broken wires up to the correct location ect.

I would say yes that if the temp sensor is broken or not hooked up it could stay in limp mode.
it is hooked up...im guessing its bad. thats just the code. the wiring is all fine. im not thinking its anything to do with the evap system.....thats just a emissions thing. wouldnt matter. i dont even have it im my ser anymore. now the coolant temp sensor, if thats not reading right, for whatever reason, it would make sense that it would have issues.....the ecu will think the motors still cold, and be dumping extra fuel like it does when its cold. im going to hope this is the problem. it is the ONLY code i have.
Old Aug 6, 2009 | 10:56 AM
  #33  
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Default Re: b series wont rev past 4000

That should be you main focus at this point to get a working temp sensor in there. Then clear the code out of the ECU and then let us know what happens.
Old Aug 6, 2009 | 11:59 AM
  #34  
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Default Re: b series wont rev past 4000

Originally Posted by FiRe_OpTiKz©
tune ? if you havent tried tuning it that might be your problem the ecu could have ben tuned for another car, different set up. even different motor
I thought you couldn't tune OBD2 ECU's?? maybe im wrong
Old Aug 6, 2009 | 12:50 PM
  #35  
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Default Re: b series wont rev past 4000

Originally Posted by wright
That should be you main focus at this point to get a working temp sensor in there. Then clear the code out of the ECU and then let us know what happens.
dont worry it is......ive got one one the way right now.
Old Aug 6, 2009 | 01:20 PM
  #36  
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Default Re: b series wont rev past 4000

just throwing out there but heres some stuff that you might find helpful:

-Check if you dont have the MAP sensor and the TPS sensor backwards
-Check firing order
-Distributor cap and rotor
-Spark plugs
-Check if you have the correct order of the injector plugs(ob1 would be brown 1, red 2, blue 3 and yellow 4)
-On the pictures I cant tell if the distributor is OBD1 converted to OBD2 check your conversion if so!
Old Aug 7, 2009 | 08:56 AM
  #37  
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Default Re: b series wont rev past 4000

Originally Posted by colocho19
just throwing out there but heres some stuff that you might find helpful:

-Check if you dont have the MAP sensor and the TPS sensor backwards
This is definately a posibility
Old Aug 7, 2009 | 05:31 PM
  #38  
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Default Re: b series wont rev past 4000

well, i didnt know, but the ecu was a tuned/chipped ecu. it had a stock tune, but it was stuck on 2 step. stock ecu is in it now.......car runs GREAT. ran a 15.7 tonight. good stuff.
Old Aug 8, 2009 | 04:48 AM
  #39  
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Default Re: b series wont rev past 4000

Glad you figured it out. Hey, at least now you have a chipped ECU and know where to go to get it tuned!
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