M2B4

ok so i got my car back last night and it has absolutely NO power. Im talking driving up a slight hill pedal to metal in 1st and barley making it up it. so i checked the codes and its throwing 22 and 41. 41 i knew it would throw b/c i havnt changed the downpipe with the new o2 sensor. but as far as the 22 they put a new vtec solenoid on still didnt fix. i topped it off with oil and reset ecu. that didnt fix. could this have thrown my ecu into limp mode? the motor starts up fine and idles fine. would code 22 cause this big of power loss?

kulrevon

well between the no o2 and the no vtec maybe its in limp. Doesn't true limp mode only rev to 3k. have you gone over that. have you check that you have continuity from the vtec wire to the ecu. is the ground good?. fix the o2 then lets see how it drives.

I know normally a honda will run alright with no o2 but maybe with the combination of the two its in limp.

Revi

I would say with the O2 being bad your car should run like shiet, that is of course what the engine uses to determine the air/fuel mixture in open loop. Sounds like the timming might be off, did anyone mess with the timming belt?

M2B4

ok well lemme rephrase. 41 is o2 sensor heater. not the o2 but i have a new o2 to replace to fix this problem. the h23 that was in it ran perf fine with the code 41. so lets just ignore that for now. but ima go retest for continuity from that wire. also ima compression test here soon if i get the tester from my friend. i have no oil light on so my guess is oil pressure is fine. what else would cause code 22? and i took it to around 3-4k rpms and the person who swapped it for me said when he was driving over to my house he went up to 7k rpms. so it dont make sense to me. b/c it seems like it would be in limp mode but rpm will go higher....?

edit: yes me and a friend changed timing it was dead on. so i had them recheck timing b4 they put motor in and they too said timing was on

Finest

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by M2B4 &raquo;</TD></TR><TR><TD CLASS="quote">41 i knew it would throw b/c i havnt changed the downpipe with the new o2 sensor. </TD></TR></TABLE>

The ecu is in limp mode because there is no O2 sensor feedback. Also, I would suggest checking your valve and ignition timing.

kulrevon

if vtec is not engaging the motor will not go over 6500. I believe that is a safety of the ecu

M2B4

code 41 is the o2 sensor heater not the o2 sensor....i have the same o2 sensor that was on the car with the h23. the h23 was throwing the code 41 for about 3 weeks since i owned it and the prev owner said its been on for a couple months. the ecu was never in limp mode with the h23. if ur not supposed to go over 3k rpms in limp mode then im guessing im not in limp mode if it was taken to 7000?

im pulling 2.88 volt from the blue wire on the vtec pressure switch. helms said i should pull approx 10 volts. any ideas?

also when i tested the black wire on pressure switch for resistance its pulling 19-22 ohms. the other grounds in the engine bay are pulling 24-26 so it dosent seem to far off.


Modified by M2B4 at 11:09 AM 11/1/2006


Modified by M2B4 at 11:18 AM 11/1/2006

M2B4

ok weird...earlier i wasnt pulling any resistance from the vtec solenoid wire. and was only throwing code 22. so i was looking through helms and decided id test the solenoid again for resistance since it said needs to be 14-30 ohms. but now i tested and i got 35 ohms from the vtec solenoid wire. the vtec pressure switch is still pulling 2.9 volts, but now im throwing code 21 and 22! any ideas? i have not started the car since. only had it on acc to test the wires

M2B4

hrm any one have ne ideas?

Mydogisgone

you got to check the connectors of the vtec wiring.
I had the problem to when i swapped to a H22a.
So check if the connectors make contact with you ecu.

if not, you could mayby bend the metal pins a bit.

(sorry for my bad english)

M2B4

ok so i checked the ecu and the pressure switch was put in D18 not D6. now im still thorowin code 22. could this had harmed the switch? but code 21 went away? any ideas?

M2B4

wow so no one out there can help?

WhiteBB2

iTrader: (1)

dude, like we talked about last night...complete BS...

M2B4

ok so now heres an update. i reconnected the vtec pressure switch to the ecu. i got code 22 to go away. so only code i was throwing was 41. started the car up let her warm up half way. went out to take it for a drive its out of limp mode now but it still felt like it was missing power. felt like i was driving my f22....so i revved up and cudnt hear the vtec crossover. get home and its throwing code 21 again. vtec solenoid. any ideas?

WhiteBB2

iTrader: (1)

if you just rev the car you will not hear a vtec cross over...it takes a couple things for vtec to engage.

1.)oil pressure
2.)about 15mph (i think, correct me if need be)
3.)proper temperature of the vehicle.

M2B4

i was driving. its 19 mph not 15 . i was at half way mark on temp gauge. and today after i get out of class im gunna have a friend come were gunna compression test and oil pressure test. but now ima go and make sure my vtec solenoid wire didnt come loose from ecu and i might take the solenoid off later and make sure that screen is clean. i dont know whats worse it running in limp mode or it running and feeling like me f22...

WhiteBB2

iTrader: (1)

both suck and mine is being gay too because it hessitates...we will get them fixed and going 100% before NOPI 07...

M2B4

ok so will vtec not engaging cause a big loss in power? should the h22 w/o vtec working "feel" like the h23? ill get back on here with some more number ie oil pressure and compression. mabye someone will be able to help me with those.

WhiteBB2

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by M2B4 &raquo;</TD></TR><TR><TD CLASS="quote">ok so will vtec not engaging cause a big loss in power? should the h22 w/o vtec working "feel" like the h23? ill get back on here with some more number ie oil pressure and compression. mabye someone will be able to help me with those.</TD></TR></TABLE>

No, Its not gonna feel like the h23. Its really just gonna feel like something is wrong with the h22.

SKDRCR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by M2B4 &raquo;</TD></TR><TR><TD CLASS="quote">ok so now heres an update. i reconnected the vtec pressure switch to the ecu. i got code 22 to go away. so only code i was throwing was 41. started the car up let her warm up half way. went out to take it for a drive its out of limp mode now but it still felt like it was missing power. felt like i was driving my f22....so i revved up and cudnt hear the vtec crossover. get home and its throwing code 21 again. vtec solenoid. any ideas?</TD></TR></TABLE>

Check the connectors and the wiring again all the way back to the ecu.

The pins might not be pushed all the way in to the ecu.

Check the a4 pin too.

M2B4

ok so heres another update. tinkered around a bit. took the vtec solenoid off screen was fine but cleaned ne ways. double checked the wires on ecu they are pretty good in there.

compression test results are nice: 200 200 205 205

so i go to test for oil pressure. i used the service bolt at the front of the motor under valve cover (looking at motor on left under valve cover) i dont know if the gauge is messed up but it was only picking up ~4 psi of pressure (with the bolt off and gauge out it spit a decent amount of oil by just semi starting it.) i dont know if thats a bad spot to test for oil pressure? but my oil light isnt on. and if i only had 4 psi of pressure surely that light would come on right? so im need to find out bout my oil b4 i go ne further with vtec lol any ideas on the oil situation?

kulrevon

that oil pressure port will only have pressure when vtec is engage. so only if you connect the solenoid directly to 12volts will it have pressure and you should not connect it to 12 volts unless over 4500rpms.

did you download the manual I sent you. because it has all of this information and flow diagrams.

JDM95lude

what is code 22. My car is throwing 22.

SKDRCR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM95lude &raquo;</TD></TR><TR><TD CLASS="quote">what is code 22. My car is throwing 22.</TD></TR></TABLE>

oil pressure switch, did you read the whole thread?

M2B4

ok got this pic from someone here on h-t


i was wondering if any yall knew the part number of that screw the hex key is in. i cant find that screw on hondaautomotiveparts.com and mines stripped .