i finally got my 88 crx with ls swap converted to obd1 to start now the car is in limp mode and wont rev past 3500, i am gettin check engine codes 4, 6, 10 & 20.... help me out dont know wat to do tried 3 diff ecus 2 chipped one stock still the same thing...........

***changed my distributor does the same thing, one thing i noticed if i have the distributor at tdc the car only revs to 1500 the more i put it to advance the higher the rev, if its all the way advance it revs to the 3500, can it be that my timing is off???***

 

what distributor and ecu are you using?

 

u HAVE to use the ecu/dizzy for that same motor. also check ur tps sensor for cracks as well

 

i was using a obd1 ls distributor and a chipped po6 also used a stock p75 ls computer obd1

 

any otha ideas????

 

ive got the same issues but no help here either i posted up and some ppl tried to help but nothing seemed to help , im throwing 4 , 6 , 10 , as soon as i find out ill post , if you find out b4 me please pm me with answers , THANKS! im 88 crx hf lsvtec obd1

 

i got a 88 hf also but i converted to si interior and engine harness it think code 4 is causing my rev to 3500 gotta figure that one out does ur car rev at the same rpm and what have you tried so far to fix the problem???

 

Code 20 (electronic load detection) first add another ground from the negative on the battery to ur chassis. If that don't work replace the fuse box under the hood that's where your (eld) is but can't be replaced so u have to replace the whole fuse box. I'll get back to u on the other codes but let me know if that helps u.

 

ok thanxx willl try that out............ any otha ideas on y i cant rev out would the code 20 cause this???

 

anything else to help me out???

 

i had that problem and the soulution, one of my injectors was bad might wanna try that.

 

10 is intake air temp sensor this shouldnt put in limp, i checked mine and its getting 0 volts , 6 is water temp sensor its getting 1/2 volt i was told this is what is causing the 3500 limp, 4 is crank position sensor it hould cause a 4500 limp, i havent found the issue with it , its a brand new dizzy so i dont know why it would be bad , and yes 3500 is all i got . only thig i can figure its the wiring , what kind of ecu jumper do you have and where did you get it?mines an ebay special , though it might be the problem , i think im just going to get a chase bays mil spec harness and be done with it . ill be getting it in two weeks ill let you know if that fixed it till then im subscribed to this thread!

 

i dont think its my step up works perfect in my friends crx we got the same one and for wiring everything is plug and play so dont see y that would be a problem ima change my distributor and see if that does anything and i dont see how the water temp sensor would cause the car not to rev past 3500 but ima change mine see if it does anything......

 

any help for me???

 

Drive it, if the ECU is chipped it may have launch control, it usually disengages around 5-8MPH

 

yea but the launch controls at 4500 and it works in otha cars even with a virgin ecu i only get 3500 rpm.......

 

do you have the tps and map sensor harness mixed up?

 

A friend of mine had the same problem. Ended up being that the harness was to tight and when driving it would pull on the fuel injector plug just enough to give him grief. Try and make sure the fuel injector plugs are all clean and seated correctly.

 

I have the same prob. I put a B18A1 in my 91 CRX DX and it only goes to 3200 rpm. I dont have hardly any of the vac. lines hooked up right now so i was just guessing thats what it was. Havent checked what codes it is throwing. Woud the o2 (i think) sensor on the muffler have anything to do with this?

P.S. Bump

 

it just revs out to 3500 and as if is was like ur rev limiter i would check ur tps and iat senor

 

you have to check your wiring. code 4 is crank position sensor. double, quadruple check pins c1 and c2, orange and white. make sure the pins are in the ecu connector good, etc. i suffered with this problem for 4 months and came to be a bad wire connection.

 

well i figured it out on mine , the chassie harness is not the same as the engine harness , im breaking down and getting everything done at chase bays , im just going to replace it all and be done with it , but just so you know it is the wiring , trace everything back to the ecu and make sure there going to the correct pin . mines all f'ed up and my shitt isnt going to the corrrect pins , i hate wiring so much im just going to spend the g to fix it right , good luck with yours and hope you can trace everything with no problems

 

changed my distributor does the same thing, one thing i noticed if i have the distributor at tdc the car only revs to 1500 the more i put it to advance the higher the rev, if its all the way advance it revs to the 3500, can it be that my timing is off???

 

My hatch is also in limp mode it 3500. Hondata says 1. injectors 2. Vtec spool.
I'll be at 7k or so when it hits and till cuts my fuel till my RPMs drop to 3500. Im going to try MrZensoku's idea. Does anyone know how to clean a Vtec solenoid?

 

Replace the gasket, it has mesh that sometimes gets clogged with old oil or metal shavings.