Took my car for its 1st test drive today. I've got some minor problems that need taken care of.

#1. I drove the car not even 1 mile, when I got back to the garage, my temp was between the 1/4 and 1/2 way mark on the gauge, is this normal?

Possible problems:

d16y7 w/y8 (I think) manifold, In a 94 Hatchback

IAC is not pluged up (when it is pluged in, I idle @ 3k)
Can't find the coolant lines to run to the IAC
Car does not leak any fluids.
New Thermostat.


#2. Throttle lag

What are the potential things that could cause low rpm throttle lag?

After around 3.5k+ The idle seems normal.

There's hardly any power (I figured this to be just because its a Honda).

I'm thinking this lag has something to do with bad timing. Anyone agree?

 

ttt

 

what did you have to fix? try switching tps and map sensor plugs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by UNKNOWN_MEMBER &raquo;</TD></TR><TR><TD CLASS="quote">what did you have to fix? try switching tps and map sensor plugs.</TD></TR></TABLE>

Everything... Fresh swap..

 

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

Everything... Fresh swap..</TD></TR></TABLE>
obviously you have not tried everything, or you would have found the problem.

did the original engine have this issue?
what do you have for a cooling system?
have you checked the ignition timing?
which ECU?
CEL on?
what temp is it outside when this happens? (starting at 40* that's quick, starting at 80* it is a little quick but not unheard of)
how are you driving in this mile? (hard driving the temps will shoot up, idling they will not)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">
obviously you have not tried everything, or you would have found the problem.

did the original engine have this issue?
what do you have for a cooling system?
have you checked the ignition timing?
which ECU?
CEL on?
what temp is it outside when this happens? (starting at 40* that's quick, starting at 80* it is a little quick but not unheard of)
how are you driving in this mile? (hard driving the temps will shoot up, idling they will not)</TD></TR></TABLE>

I didn't have the car originally, I bought the shell and the motor seperatly.
Timing may be off a bit
ECU: p28
CEL : Vtec switch, vtec pressure, iat
It was about 60 outside, and for the 1 mile I drove, the car was being babied to death.

Could an air bubble in the coolant be a significant problem?

 

An air bubble will cause the car to overheat not heat up fast.


CEL on = car runs rich and retarded ignition. (this is also your gutless/lag issue)
ignition timing being off causes even more ignition problems.

fix those and see what happens.