when i first start it up it and rev it it goes all fine but as soon as the check engine light goes on then it wont rev pass 3.5k even when full throttle .....i just changed out the dizzy i am throwing code 4,7,8 ...........can this be the problem if so where are these located at

 

Check The Dizzy wiring, or swap out the Dizzy for a known good one...


What engine? What car? What dizzy are you using?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dc4iNtEgRa &raquo;</TD></TR><TR><TD CLASS="quote">Check The Dizzy wiring, or swap out the Dizzy for a known good one...


What engine? What car? What dizzy are you using?</TD></TR></TABLE>

its a d15b2.........obd0 dizzy...........90 crx.............ive been reading thats its in limp mode..........if do how do i get it out of limp mode

 

1 O2A - Oxygen sensor #1
2 O2B - Oxygen sensor #2
3 MAP - manifold absolute pressure sensor
4 CKP - crank position sensor
5 MAP - manifold absolute pressure sensor
6 ECT - water temperature sensor
7 TPS - throttle position sensor
8 TDC - top dead centre sensor

4,7,8... Use a voltmeter and check the TPS. CKP, and TDC are in the Dizzy...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dc4iNtEgRa &raquo;</TD></TR><TR><TD CLASS="quote">

4 CKP - crank position sensor
7 TPS - throttle position sensor
</TD></TR></TABLE>
where are these located in my engine?

 

4- Dizzy
7- Back of the throttle body...

 

ok then so 4,8 are in dizzy and 7 is by the throttle??? also its a dpfi .......how do i get out of limp mode cuz im pretty sure that im in it

 

LATE NIGHT BUMP........I MEAN WHEN I JUST TURN IT ON IT REVS PERFECTLY OVER BUT AS SOON AS THAT CHECK ENGINE LIGHT HITS ITS ON DOWNHILL AFTER THAT AND I JUST REPLACED THE DISTRIBUTOR

 

another late night bum....check it out in the morning

 

to the top we go and so [freak]en clueless

 

ok throwing code 4,6,10,13,20

dunno why 4 if i just threw in a distributor.................

 

ok now just throwing code 4 so i know it has to be a bad dizzy

 

bump

 

would a Bad dizzy be the cause of it throwin a code 4 cuz i mean it revs fine for the first 2 times when u just start it then right after check engine light comes on and code 4 appears and cant go over 3.5k

 

hear me out... my car threw the same codes and went into limp mode. it ran like a miss and i took off the plug wires one by one. found my dead cyl. changed the injector and all was good.worth a try.

 

it usually wont go into limp mode unless your map sensor comes disconected from vacuum. set your tps, and replace your distributor. If you have already replaced the distributor, then go ahead and unplug the ecu for about a minnute then plug it back in to reset it. Or take both of the battery cables off of the battery and touch them together. that will get rid of any electricity in the system very quickly.

 

thanx for your help.....its been driving me nuts....seems like whenever i fix something another problem occurs i know it happens but damn man not at a time like now where i need to save as much as i can cause im moving ....i already put in the order on ebay for a brand new dizzy with one year warranty so im pretty sure that's going to fix then right after on the selling block it goes....hopefully want to get at least 1k for it ....i just updated the tags to 09 and oil changed,brand new o2 sensor,a new cd player with new speakers all around , and now new dizzy ......

 

what kinda car is it? where are you located? I may know someone interested in it. Hell I might be.

 

1990 honda crx dx....stock engine ...due to i want my MPG ......located in lynwood,california .......just got my new dizzy with one year warranty.....threw it in .....no more code 4 runs like a champ .....also open to trades plus im willin to throw in some cash

 

Sounds like you are in LIMP MODE. If your ECU detects a fatal error, it will put the car in LIMP mode to protect the engine. Your best bet is to invest in a Factory Service manual. It'll cost a little more than a Haynes or Chilton's, but it will go into much more detail.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by official-ef8 &raquo;</TD></TR><TR><TD CLASS="quote">Sounds like you are in LIMP MODE. If your ECU detects a fatal error, it will put the car in LIMP mode to protect the engine. Your best bet is to invest in a Factory Service manual. It'll cost a little more than a Haynes or Chilton's, but it will go into much more detail.</TD></TR></TABLE>

no need to anymore ....problem solved

 

too far away from me.