turbobuick1035
Member
- Joined
- Sep 6, 2003
Ok now that i got the pump primed..any suggestions on why im still getting knock at 15 lbs..car boggs down at idle when i hit test button like it should so I know methonal is getting to the intake..
Do what I explained earlier. Do the boost test with the engine not running. Take the inlet pipe off and watch it spray while you apply air pressure to the MAP sensor. What's it doing? I'm the kind of guy who likes to see it for myself.
The piece that gets hooked to the map sensor is like a reducer that gets hooked up to the hard vac line then goes to the map sensor..is that stopping it from turning on because i just put a regular straight hose f om the hard vac line to the map sensor and it supposed to be some kind of reducer.Ok I applied air pressure to the MAP..pump works great ..methonal sprays out flawlessly..so we know the map works..it seems like the vacuum line that is going into the map has something to do with it..i looked for leaks..but i have to say the original piece that was hooked to the map..looked all dry rotted and i replaced it even though it was working fine..(shouldnt fix what isnt broken right)..but now when i got into boost the light doesnt even come on now..
After i got the pump,primed and after replacing that small piece of rubber vac line to the map ..now into boost..nothing only works now when i hit the test button or applying air manually to the map with an air hose. Damn it ..everything was fine until i had that leaked and pump lost its prime..now it's frustrating trying to get it right again...grrrrIn the past when the alky would turn on the green dash light "power injection". would turn on right? That's like a test light to me. If I step on it and don't see that I'd let off because if that light is not on, the pumps not on. That said, have a helper check the dash light while you put air to the map. If the dash light works then I'd say. Something is wrong with the boost line to the map. Also probably not it but don't forget the purple disable wire.
Do you have 5v to the map?Ok so as the istructions say..the green wire goimg to the map should read 1.6V with the key on but engine not running..I'm getting nothing. So I guess thats my problem..the map isn't getting the signal. How do I track this down..where should I start?
How do I check that? Ive never had to mess with it since it was hooked up 10+ years ago..its worked flawlessly so im no expert on trouble ahooting this .Do you have 5v to the map?
And this is with the key on but engine not running right? Its gotta be something simple..going back to the instalation instuctions which i still have the green wire going to the map is supposed to read 1.5 V with key on but engine not running..does that sound right?You'll need a digital multimeter. The black meter wire goes to a shiny solid body ground. You then gently back probe the three wires at the map. One will show nothing because it's the ground. The other will read 5 v. That's generated in the ecm. Called 5 v reference. The other is the signal. Varies from 0-5 volts. If you have the tps jumper harness make sure its plugged in. That was the easy way to wire it up. If you have nothing at the map follow the wires until you find a suspicious connector then test again.
you don't really know how much is actually getting in,this is why you should get a gauge for your alky kit,guessing can get really expensive.Ok now that i got the pump primed..any suggestions on why im still getting knock at 15 lbs..car boggs down at idle when i hit test button like it should so I know methonal is getting to the intake..