ok guys i have a 00 civic si with 98 gsr obd2 motor... just rebuilt, all new internals, the whole nine yards. today i am going down the road shifting into 5th gear running about 60 when the car just makes a little BOOM nose and shuts off. i coast into a driveway check it out nothing looks blown etc. it will turn over but not fire....i decided to change plugs and wires and now it almost fires but then its like something is cutting it off and stopping it. any ideas? please help me its only half a mile from my house and it really frustrating me. i have had so so many problems with this car and i thought with a new motor rebuilt and everything it would be ok,apparently not though so please help as much as possible. thanks in advance

made same post in civic forum so i know its a double post but please help me

 

anyone?

 

where did that BOOM come frome can u give a lil more detail.

 

lol yeah i know thats general. i apologize. sounded like from under the hood. my mechanic called me last weekend and told me he forgot to hook the o2 sensor up. i didnt think much about it at the moment cause it didnt seem like a huge deal to me. but like i said car woudl not fire til i replaced the plugs and now it fires but its like its getting cut off by somethin...

 

Is your timing belt covered? If not, take off your valve cover and inspect your timing belt, it may have snapped which is not a good thing.

 

yeah it is covered im going to check it out herein a little bit. the guy that did the swap gets off work at 3 so im gonna give him a call to come check it out. but i hope not we replaced all belts brand new last week with motor....

 

good luck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kmthao321 &raquo;</TD></TR><TR><TD CLASS="quote">good luck</TD></TR></TABLE>

thanks i appreciate it and im gettin all my help from u teg guys thanks for helpin out a civic owner anyway just though i might add the guy who did the swap for me could not get the timing perfect he said at one place it was just really horrible, rough idle and the other where we set it, it was close but had a small surge or bounce to it. nothing huge but noticeable....with this said, would you guys think this could have caused it to jump time?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cmillertime05 &raquo;</TD></TR><TR><TD CLASS="quote">

thanks i appreciate it and im gettin all my help from u teg guys thanks for helpin out a civic owner anyway just though i might add the guy who did the swap for me could not get the timing perfect he said at one place it was just really horrible, rough idle and the other where we set it, it was close but had a small surge or bounce to it. nothing huge but noticeable....with this said, would you guys think this could have caused it to jump time?</TD></TR></TABLE>

He probably doesn't know how to do a timing belt on a honda then, You have to tighten it 3 teeth to get it right.

But I have never seen a motor jump time yet, usually it just bends all the valves and leaves a few in the pistons.

Maybe your car ran lean from not having the o2 hooked up. I believe the car will stay in closed loop and that is not good. If you can get the engine warm then do a compression check.

First unplug the injectors and remove all the spark plugs, then put your gauge on cylinder # 1, have a friend turn the car over so that it spins about 5 times and record the psi #, do this to all 4 cylinders and they should not be more than 10 +- from each other.

Also while doing the test pay attention to the compression gauge and how fast it get up to the final PSI #.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kikwear002 &raquo;</TD></TR><TR><TD CLASS="quote">

He probably doesn't know how to do a timing belt on a honda then, You have to tighten it 3 teeth to get it right.

But I have never seen a motor jump time yet, usually it just bends all the valves and leaves a few in the pistons.

Maybe your car ran lean from not having the o2 hooked up. I believe the car will stay in closed loop and that is not good. If you can get the engine warm then do a compression check.

First unplug the injectors and remove all the spark plugs, then put your gauge on cylinder # 1, have a friend turn the car over so that it spins about 5 times and record the psi #, do this to all 4 cylinders and they should not be more than 10 +- from each other.

Also while doing the test pay attention to the compression gauge and how fast it get up to the final PSI #.</TD></TR></TABLE>

hmm well ok then he has worked on several several before of mine and i have never had any problems. built a z6 for me and never missed a lick, turboed it all that good stuff....anyway though he wasnt happy with it like i said but it was close as he could get it he said we would try it again later once the motor got broke in and what not. he did tell me about the valves messin up if it was one it was all and that does suck! im hoping its not that though any other ideas? im trying to get ahold of him as we speak but i guess he hasnt made it in from work yet