No VTEC and car "splutters" and cuts out violently over 4k

Post by **ek9sid** » Thu Dec 15, 2016 2:25 pm

http://honda-tech.com/forums/tech-misc- ... r-2169249/

http://honda-tech.com/forums/honda-crx- ... d-2830131/

NOT sure if the h22 is different setup or whatnot but worth a look

Post by **Drax** » Thu Dec 15, 2016 2:35 pm

ek9sid wrote:http://honda-tech.com/forums/tech-misc- ... r-2169249/

http://honda-tech.com/forums/honda-crx- ... d-2830131/

NOT sure if the h22 is different setup or whatnot but worth a look

BOOM!!! that will be the badger, thank you!!

njord · Post by **njord** » Fri Dec 16, 2016 5:27 pm

I was going to suggest looking in the manual as I am sure I've seen it in there in the pmfi section of it

Post by **Lude-dude** » Sat Dec 17, 2016 11:16 am

I've had trouble with TPS's recently

car would hesitate & splutter, but had vtec and no cutting out

Post by **Drax** » Sat Dec 17, 2016 4:38 pm

Lude-dude wrote:I've had trouble with TPS's recently

car would hesitate & splutter, but had vtec and no cutting out

what was your fix in the end?

Post by **Lude-dude** » Sun Dec 18, 2016 12:50 pm

new TPS

but Chinese one from ebay, ideally need one from 2nd hand honda throttle body and use a dremel to get it off.

Post by **Drax** » Fri Dec 23, 2016 11:59 am

ok, last night we checked the TPS wiring voltage on the red wire according to these guides;

http://honda-tech.com/forums/tech-misc- ... r-2169249/

http://honda-tech.com/forums/honda-crx- ... d-2830131/

when i first checked the voltage, it showed 1.40v when closed and 5.45v when fully open - this made me think ah ha! needs adjusting (as according the the manual it needs to be 0.5v closed and 4.5v fully open).... adjusted it both ways and the best i could get was 2.18v closed and 6.21v fully open...

so worse than when we started.

the voltage didnt seem reverse, which was something to check in the manual, and the multimeter used seemed to be reading ok on other wiring i checked.

one thing though, the guide say to check when the ignition is turned to ACC on the barrel - when i tried this i couldnt get any reading at all until i turned the key to the ON position...

njord · Post by **njord** » Fri Dec 23, 2016 4:41 pm

If I remember right the 5v is supplied from the ecu so it might be a possible ecu fault

As it should be one pin ground one pin 5v and other pin is the output

Post by **Drax** » Thu Dec 29, 2016 6:11 pm

Right, swapped the ECU for a spare of njords and made no difference in the voltage, still showed too high.

Swapped the tps for a 3rd different one and also a different TB and the lowest voltage I could get was 1.25 closed and 5.88 open.

I checked the yellow cable had 5v but its showing 6v

I've had to repair the yellow wire to as it had pulled out of the plug pin. Made no difference after the repair.

The manual is showing to change the a/t control unit as the next stage but his isnt an auto so I can't do that...

Kind of stuck now.

njord · Post by **njord** » Thu Dec 29, 2016 6:59 pm

Is that where the 5v is supplied from?