Anubis_4_99

i've tried a million diffrent maps, both premade and self made on both uberdata and crome

T-belt is on right i know that

vacum is a little low but not alot... its like 10-15.. it used to be 20-25

done a compression test and it comes out ok, dont know how to do a leak down... i'll search that later and try to do one tomorrow if i can..

i've literaly replaced and checked everything but the things listed above...

any more ideas would be awsome.. if that low vac is an indication of somethin let me know how to fix it please i'd really like to have my car, not driveing it for almost 5 months sucks major ***

fireing order is correct, double checked that.. and theres no cel, i did have about 5 codes but fixed those already and no more

JDMFantasy2K

dude 5" of vac is huge, especially since your map sensor relies on that to calculate the fuel injection for the car :P Take a small camping cylinder of propane with an attachable nozzle and release it around your intake manifold, throttle body, and injector seats and see if you idle goes up. It'll help you pinpoint vacuum leaks.

Anubis_4_99

:1

would a 5-10 vac diffrence cause that big a diffrence in how the car runs?

sikcrx89

it could be if your map isnt seeing the right amount of vaccumm it can throw the mix off and run like ----.

JDMFantasy2K

dude, think of how much vac a normal car with a map sensor see, we'll say betwen 22 and 0 inches right? and you're changing that value by about half. You tell me if it's going to run okay. :1

Anubis_4_99

i never knew the map relied on the vac to measure what fuel is needed

i'll look for leaks today

sohcpwr

10 to 15 is really low, but not really low enough to cause it not to run at all. But your problem is most likely something relating to engine vacuum. If your compression tests are good, 185 for stock engines, theres really no point in doing a leakdown test. It will just show you where the leak is in the engine. A smoke machine will also help you find vac leaks. You pump it into a vac line and see where it comes out.

AMkrew

Check to make sure the tps and map sensor plugs are on the right one. I had done this just a few weeks ago, and felt totally retarded. I was encountering really rough running, with major hesitation... Enough to keep me from driving the car. Rversed them, and it runs like a champ!

(I know, noob mistake, lol)

-josh-

sohcpwr

^^ very true. IAT and IACV also use the same style plug. Dont mix those up either. Look in a chiltons for the wire color if you dont remember which one went where.

calbert0

i also switched the sensors up when i did my mini-me. check it out, its a poosibility