Originally Posted by dylanger
No Power Loss, Ive never had a car with ABS. How do you Bench Bleed? The car was a drug taskforce car and I dont know anything about the past owners. I havent done a tuneup. I was wondering if the mass airflow sensor would be the issue? I had check engine lights, I pulled a chime fuse, put it back in, I havent had any sense then. I had a check engine, air bag, and security comming up.
The Air Filter is fine, Plugs and wires, I havent checked.
Is the fuel filter on the line like some vehicles ive delt with in the past?
So the O2 sensor would kill the power for sure? Ive herd of that being a common GM problem.
Before I say anything else, your car should be able to get 30MPG+ on the highway and 20MPG+ in the city.
Big variance on these, I normally get around 19mpg in the city waiting in traffic a lot. I also have a big ol supercharger and a paralyzed foot so my foot sometimes gets stuck on the gas.
As far as bench bleeding, there are automated systems at most repair shops but you can do it yourself, for information go to google or go here:
As far as power goes, your car should be as fast as this car:
the video is here:
thats a 95 SE.....bone stock
The maf usually does not cause major power loss, You can clean the maf, but be ready to replace it if you break the sensor, they can be costly from a parts shop, so having a spare from a Junk Yard is a great idea.
To clean the MAF, you need some q-tips, some isopropl rubbing alcohol and some distilled water. I usually do a 50% alchohol mixed with 50% distilled water, mix as best you can, now remove the MAF, you will notice 2 electrical wire looking resistor things. You need to VERY carefully clean those without bending them with the q-tip. Let dry for 1 hour before reinstalling.
The fuel filter is a 10 minute job. I had never done it before and it took me 20 minutes.
1. bleed off fuel from the fuel rail with a towel or something, dont get fuel on the engine, thats bad.
2. once pressure is relived, remove gas gap or loosen it
3. look underneath the car on the passenger side near the kickpanel or near the fuel tank, its inline with the fuel lines, just pop the plastic connectors off and swap the new one in, replace gas cap and crank engine a few times it should fire right up.
OK, if we have CHECK ENGINE lights on your car we are sorta in trouble. You have an OBD-1.5 compliant car, so that means you CANT get it scanned for free at autozone.... I'd try to do all the basics before paying $40-$60 to have your GM dealer scan the car. I'd start by replacing the plugs and wires, as if they are original you could have an issue with a misfire or tons of other problems.
Your EGR valve can be removed and cleaned with throttle body cleaner, I'd do this, it may not help much but is worth a shot.
Since we are on the topic of throttle body cleaner, lets just remove the throttle body and the TPS, MAF and IAC and clean the sucker, make sure you have a throttle body gasket from the dealer before you attempt this, as the gasket nearly always gets destroyed in the process of removing the TB.
Airbag lights are a problem, I'd let someone who knows what they are doing fix this, seriously.
Security light can be several things, where the car is still starting every time its hard to say, but I'd focus on making sure the check engine light never comes back and the car is getting normal MPG and having normal power.
I'd reset the PCM as well, as I described in my other post.
Make sure you replace the O2 sensor with an OEM delco O2, others are known to have problems, several members have experienced very quick failures with the bosch O2 sensors..avoid them.
Finally, please click on PROFILE at the top of this page and go to SIGNATURE and put your car in there. That way, if you have questions in the future, we know what kind of bonneville you have