Car: 1990 Integra GS
Trans: Auto
Miles: 91,xxx
Mods: GReddy Catback exhaust w/ hollowed cat; AEM Short Ram intake.
Known bads: EGR Valve/system and broken A/C compressor
Well, my da9 has been giving me issues for a long time, have really attributed most of it to the bad egr system and a possible vacuum leak.
First started the roaming idle. It began about 8-9 months ago. After driving my car about 15 miles, i drove into a parking spot and put it in park. The car revved up to 1500 and down to around 750, and repeated this until i tapped the accelerator pedal… Figured it was probably a vacuum leak or something quirky or whatever.
Its been giving me that problem for a while. I had a water pump blow out on me on the highway, got it fixed before the engine got too hot. Ran okay afterwards.
Eventually ran into an oil issue, where i was squirting alot of oil (was the oil pressure sender unit). I was lazy and let the shop take care of it (i was going to replace the oil pan gasket because thats where it looked like it was coming from). When i went to drive the car off from the shop, it felt like the car had ALOT of lost power. Idle issue got worse by far, and it just seemed to be running terribly. I asked the shop what the HECK they did, they told me that when they changed the valve cover gasket, the guy “Noticed my valves were loose” so he tightened them… It was running alright after they had it for another day, still with rough idle. So i decided to clean my IACV, and that helped a little. Still rough though.
I did a valve adjustment (0.006 - 0.007) because when i checked my valves they were ALL WAY OUT OF SPEC. After the valve adjustment, car seemed to run much better. I also replaced spark plugs (Bosch Coppers or something cheap).
Car has within the past 1-2 months started blowing a puff of smoke (white or blue, cant really tell) ONLY after it’s been idling for a few minutes, then i hit the gas.
Also, when putting the car into gear, the rpm’s dip VERY HARD, to below the 500 line. Has stalled out a few times due to this.
I removed the A/C belt because compressor is broken about 3 weeks ago.
The biggest problem started last week. I brought the car into school to do a vacuum test. Car gave me a steady 16" at idle, and wanted to idle perfect at school. Meh. I checked, could not find any evidence of vacuum leaks, which completely confused me.
That night was raining, and the car had stalled out 2 times (it hadn’t stalled out for a few months).
Teacher suggested it might be a clogged fuel filter. From reading here and t-i, i know that a rough idle could also be caused by this (or a bad pump).
Drove it home, no issues. Ran perfect. Went to a friends house for a few hours, then left to go home (less than 1mile drive). 3/4 of the way, the car felt like it misfired or just diddnt have gas. Was during a turn. Ran back normal for a few feet, then i tried to go WOT to see if it would happen again, it stumbled at about 3000 rpm. Driving down by my street on the last corner, i pressed the pedal in out of the turn and it starts to stall. I release pedal and it goes back semi-normal. I press gas in again, and it completely stalls out and dies. I coast to my parking spot and try to turn it over again. Difficulty starting, strange noises, and I tried to hit the gas a little bit to get it started. It starts up a bit, and then dies out. Car has not started up since.
The motor spins, but doesnt crank.
Today I tried spraying starter fluid in the throttle body during start. Nothing, not even a kick. Perhaps I was doing it wrong??
Did a compression test, dry only
- 175 2) 180 3) 175 4) 175
I am thinking it could be my distributor.
My question for you all after this extremely long and cumbersome rant,
A) Is there a better way to test the fuel system rather than spraying starter fluid into my intake? Or should I consider the results of my starter fluid test as conclusive?
A) What are the testing procedures for the distributor and ignition system (or where to get them)
B) Would a bad distributor explain the issues that have been plauging my car from the start? Or is this just an additional issue that has come along the way.
Can the distributor cause me to have bad idle for 8+ months??
I am so frustrated right now
My initial plan was to get the filter + fuel pump and it should be good as new, but now this seems not the case